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Porth-llwyd 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Porth-llwyd

Gwynedd, United Kingdom

Long range weather outlook for Porth-llwyd includes 14 day forecast summary:

The forecast for Porth-llwyd in the coming two weeks is predicting the average daytime maximum temperature will be around 6°C, with a high for the two weeks of 8°C expected on the evening of Friday 21st. The mean minimum temperature will be 2°C, dipping to its lowest on the morning of Saturday 15th at -2°C. The next 14 days will have some days seeing a little precipitation and some days with rain, sleet or snow. Current predictions suggest Tuesday 18th will have the most precipitation with an accumulation of around 25.0mm. On the whole winds are likely to be moderate. The strongest wind will be experienced on the evening of Saturday 15th, coming from a westerly direction, and reaching around 29mph.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 15
Dec
12:00

SE
SE

24 / 50 mph 33 / 21°F 84% 1001 mb
Low level cloud: 66%
Mid level cloud: 95%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
15:00

SSE
SSE

23 / 49 mph 38 / 27°F 88% 994 mb
Low level cloud: 82%
Mid level cloud: 89%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.22 In of precipitation over the past 3 hours.
0.22 In
18:00

S
S

15 / 28 mph 46 / 40°F 92% 990 mb
Low level cloud: 90%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.07 In of precipitation over the past 3 hours.
0.07 In
21:00

WNW
WNW

30 / 63 mph 36 / 24°F 90% 992 mb
Low level cloud: 93%
Mid level cloud: 99%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.11 In of precipitation over the past 3 hours.
0.11 In
Sun 16
Dec
00:00

W
W

19 / 41 mph 37 / 27°F 79% 997 mb
Low level cloud: 76%
Mid level cloud: 94%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.17 In of precipitation over the past 3 hours.
0.17 In
03:00

WSW
WSW

14 / 23 mph 41 / 34°F 85% 1001 mb
Low level cloud: 36%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
06:00

WSW
WSW

10 / 17 mph 41 / 35°F 86% 1002 mb
Low level cloud: 24%
Mid level cloud: 14%
High level cloud: 6%
Most Significant Cloud Type: low
29%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
09:00

SW
SW

10 / 17 mph 41 / 35°F 86% 1004 mb
Low level cloud: 22%
Mid level cloud: 10%
High level cloud: 39%
Most Significant Cloud Type: low
30%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SW
SW

12 / 26 mph 37 / 29°F 82% 1003 mb
Low level cloud: 60%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
88%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
15:00

SW
SW

10 / 21 mph 39 / 32°F 85% 1003 mb
Low level cloud: 38%
Mid level cloud: 15%
High level cloud: 38%
Most Significant Cloud Type: low
47%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
18:00

SW
SW

9 / 16 mph 41 / 36°F 86% 1005 mb
Low level cloud: 18%
Mid level cloud: 31%
High level cloud: 35%
Most Significant Cloud Type: low
33%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
21:00

SW
SW

10 / 17 mph 42 / 36°F 86% 1007 mb
Low level cloud: 11%
Mid level cloud: 44%
High level cloud: 97%
Most Significant Cloud Type: medium
80%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
Mon 17
Dec
00:00

WSW
WSW

9 / 17 mph 40 / 35°F 86% 1009 mb
Low level cloud: 27%
Mid level cloud: 18%
High level cloud: 11%
Most Significant Cloud Type: low
34%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
03:00

SW
SW

8 / 17 mph 39 / 34°F 85% 1011 mb
Low level cloud: 15%
Mid level cloud: 8%
High level cloud: 20%
Most Significant Cloud Type: low
20%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SW
SW

9 / 18 mph 39 / 33°F 86% 1013 mb
Low level cloud: 20%
Mid level cloud: 8%
High level cloud: 95%
Most Significant Cloud Type: low
34%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

S
S

10 / 20 mph 41 / 34°F 89% 1013 mb
Low level cloud: 64%
Mid level cloud: 28%
High level cloud: 32%
Most Significant Cloud Type: low
77%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

S
S

16 / 32 mph 43 / 35°F 83% 1013 mb
Low level cloud: 87%
Mid level cloud: 33%
High level cloud: 92%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

S
S

17 / 36 mph 43 / 36°F 88% 1011 mb
Low level cloud: 91%
Mid level cloud: 77%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
18:00

S
S

19 / 39 mph 43 / 34°F 92% 1010 mb
Low level cloud: 93%
Mid level cloud: 74%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.11 In of precipitation over the past 3 hours.
0.11 In
21:00

S
S

21 / 45 mph 41 / 32°F 89% 1009 mb
Low level cloud: 92%
Mid level cloud: 30%
High level cloud: 22%
Most Significant Cloud Type: low
100%
Expect 0.08 In of precipitation over the past 3 hours.
0.08 In
Tue 18
Dec
00:00

S
S

24 / 51 mph 39 / 28°F 87% 1008 mb
Low level cloud: 88%
Mid level cloud: 46%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
03:00

S
S

26 / 56 mph 38 / 26°F 85% 1005 mb
Low level cloud: 92%
Mid level cloud: 68%
High level cloud: 88%
Most Significant Cloud Type: low
100%
Expect 0.03 In of precipitation over the past 3 hours.
0.03 In
06:00

S
S

28 / 58 mph 37 / 24°F 81% 1002 mb
Low level cloud: 86%
Mid level cloud: 52%
High level cloud: 48%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
09:00

SSE
SSE

27 / 57 mph 39 / 28°F 80% 1000 mb
Low level cloud: 78%
Mid level cloud: 89%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.12 In of precipitation over the past 3 hours.
0.12 In
12:00

S
S

28 / 58 mph 42 / 32°F 83% 997 mb
Low level cloud: 90%
Mid level cloud: 81%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.13 In of precipitation over the past 3 hours.
0.13 In
15:00

S
S

25 / 49 mph 43 / 34°F 87% 996 mb
Low level cloud: 94%
Mid level cloud: 74%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.20 In of precipitation over the past 3 hours.
0.20 In
18:00

WSW
WSW

9 / 15 mph 42 / 37°F 97% 996 mb
Low level cloud: 90%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.37 In of precipitation over the past 3 hours.
0.37 In
21:00

SSW
SSW

6 / 12 mph 40 / 36°F 89% 997 mb
Low level cloud: 8%
Mid level cloud: 96%
High level cloud: 98%
Most Significant Cloud Type: medium
100%
Expect 0.12 In of precipitation over the past 3 hours.
0.12 In
Wed 19
Dec
00:00

WSW
WSW

12 / 24 mph 40 / 32°F 85% 999 mb
Low level cloud: 36%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SW
SW

14 / 30 mph 38 / 29°F 79% 1002 mb
Low level cloud: 27%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
29%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SW
SW

14 / 29 mph 37 / 28°F 80% 1003 mb
Low level cloud: 42%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SSW
SSW

15 / 30 mph 40 / 32°F 80% 1005 mb
Low level cloud: 31%
Mid level cloud: 27%
High level cloud: 82%
Most Significant Cloud Type: low
50%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
12:00

SSW
SSW

19 / 33 mph 43 / 34°F 77% 1006 mb
Low level cloud: 47%
Mid level cloud: 56%
High level cloud: 96%
Most Significant Cloud Type: low
78%
Expect 0.03 In of precipitation over the past 3 hours.
0.03 In
15:00

SSW
SSW

17 / 25 mph 44 / 37°F 79% 1006 mb
Low level cloud: 18%
Mid level cloud: 24%
High level cloud: 95%
Most Significant Cloud Type: low
37%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
18:00

SSW
SSW

17 / 28 mph 43 / 35°F 80% 1007 mb
Low level cloud: 62%
Mid level cloud: 24%
High level cloud: 6%
Most Significant Cloud Type: low
71%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
21:00

SW
SW

16 / 34 mph 41 / 32°F 83% 1008 mb
Low level cloud: 4%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: medium
65%
Expect 0.06 In of precipitation over the past 3 hours.
0.06 In
Thu 20
Dec
00:00

WSW
WSW

11 / 23 mph 40 / 33°F 87% 1009 mb
Low level cloud: 4%
Mid level cloud: 62%
High level cloud: 100%
Most Significant Cloud Type: medium
77%
Expect 0.09 In of precipitation over the past 3 hours.
0.09 In
03:00

WSW
WSW

8 / 17 mph 38 / 32°F 90% 1011 mb
Low level cloud: 62%
Mid level cloud: 74%
High level cloud: 20%
Most Significant Cloud Type: low
89%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
06:00

W
W

7 / 15 mph 37 / 32°F 90% 1013 mb
Low level cloud: 59%
Mid level cloud: 23%
High level cloud: 5%
Most Significant Cloud Type: low
67%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

WSW
WSW

7 / 13 mph 40 / 35°F 89% 1016 mb
Low level cloud: 25%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
32%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

W
W

8 / 13 mph 43 / 37°F 81% 1017 mb
Low level cloud: 21%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
30%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

WSW
WSW

6 / 8 mph 44 / 40°F 86% 1018 mb
Low level cloud: 13%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
19%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

SW
SW

5 / 8 mph 43 / 39°F 92% 1019 mb
Low level cloud: 63%
Mid level cloud: 24%
High level cloud: 29%
Most Significant Cloud Type: low
74%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

SSW
SSW

6 / 12 mph 41 / 36°F 93% 1020 mb
Low level cloud: 70%
Mid level cloud: 10%
High level cloud: 90%
Most Significant Cloud Type: low
84%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Fri 21
Dec
00:00

S
S

9 / 15 mph 42 / 37°F 91% 1019 mb
Low level cloud: 36%
Mid level cloud: 30%
High level cloud: 99%
Most Significant Cloud Type: low
58%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

S
S

12 / 26 mph 37 / 29°F 92% 1017 mb
Low level cloud: 84%
Mid level cloud: 90%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
06:00

S
S

14 / 30 mph 40 / 32°F 94% 1014 mb
Low level cloud: 89%
Mid level cloud: 83%
High level cloud: 94%
Most Significant Cloud Type: low
100%
Expect 0.15 In of precipitation over the past 3 hours.
0.15 In
09:00

SSW
SSW

17 / 36 mph 45 / 38°F 97% 1011 mb
Low level cloud: 92%
Mid level cloud: 87%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.16 In of precipitation over the past 3 hours.
0.16 In
12:00

SSW
SSW

18 / 38 mph 44 / 36°F 96% 1008 mb
Low level cloud: 94%
Mid level cloud: 84%
High level cloud: 95%
Most Significant Cloud Type: low
100%
Expect 0.27 In of precipitation over the past 3 hours.
0.27 In
15:00

SW
SW

12 / 26 mph 46 / 40°F 98% 1006 mb
Low level cloud: 91%
Mid level cloud: 71%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.19 In of precipitation over the past 3 hours.
0.19 In
18:00

WSW
WSW

6 / 13 mph 47 / 44°F 98% 1006 mb
Low level cloud: 90%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
98%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
21:00

W
W

6 / 12 mph 43 / 39°F 97% 1006 mb
Low level cloud: 66%
Mid level cloud: 12%
High level cloud: 11%
Most Significant Cloud Type: low
71%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 22
Dec
00:00

SE
SE

5 / 11 mph 33 / 28°F 91% 1016 mb
Low level cloud: 2%
Mid level cloud: 56%
High level cloud: 95%
Most Significant Cloud Type: medium
64%
0.00 In
06:00

NW
NW

9 / 19 mph 34 / 27°F 90% 996 mb
Low level cloud: 76%
Mid level cloud: 55%
High level cloud: 38%
Most Significant Cloud Type: low
99%
0.07 In
12:00

W
W

10 / 21 mph 38 / 31°F 85% 1005 mb
Low level cloud: 69%
Mid level cloud: 45%
High level cloud: 94%
Most Significant Cloud Type: low
96%
0.03 In
18:00

N
N

5 / 6 mph 43 / 40°F 89% 1008 mb
Low level cloud: 76%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
80%
0.01 In
Sun 23
Dec
00:00

W
W

8 / 16 mph 35 / 28°F 93% 1004 mb
Low level cloud: 89%
Mid level cloud: 88%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.20 In
06:00

SE
SE

7 / 14 mph 39 / 34°F 89% 1012 mb
Low level cloud: 49%
Mid level cloud: 90%
High level cloud: 100%
Most Significant Cloud Type: low
92%
0.04 In
12:00

SW
SW

24 / 51 mph 46 / 37°F 97% 1008 mb
Low level cloud: 94%
Mid level cloud: 96%
High level cloud: 89%
Most Significant Cloud Type: low
100%
0.31 In
18:00

N
N

8 / 17 mph 35 / 29°F 95% 1002 mb
Low level cloud: 81%
Mid level cloud: 66%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.09 In
Mon 24
Dec
00:00

WSW
WSW

25 / 53 mph 38 / 27°F 91% 1005 mb
Low level cloud: 73%
Mid level cloud: 64%
High level cloud: 98%
Most Significant Cloud Type: low
100%
0.45 In
06:00

N
N

13 / 28 mph 35 / 26°F 86% 1006 mb
Low level cloud: 51%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
66%
0.04 In
12:00

WNW
WNW

18 / 32 mph 42 / 33°F 79% 1010 mb
Low level cloud: 88%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.03 In
18:00

WNW
WNW

6 / 10 mph 39 / 34°F 88% 1011 mb
Low level cloud: 68%
Mid level cloud: 1%
High level cloud: 13%
Most Significant Cloud Type: low
70%
0.00 In
Tue 25
Dec
00:00

NW
NW

16 / 30 mph 40 / 31°F 80% 1019 mb
Low level cloud: 75%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
82%
0.05 In
06:00

SSW
SSW

13 / 28 mph 36 / 27°F 90% 1008 mb
Low level cloud: 94%
Mid level cloud: 95%
High level cloud: 99%
Most Significant Cloud Type: low
100%
0.03 In
12:00

NW
NW

14 / 22 mph 43 / 37°F 75% 1030 mb
Low level cloud: 38%
Mid level cloud: 43%
High level cloud: 30%
Most Significant Cloud Type: low
56%
0.05 In
18:00

W
W

12 / 21 mph 43 / 36°F 86% 1007 mb
Low level cloud: 35%
Mid level cloud: 41%
High level cloud: 16%
Most Significant Cloud Type: low
51%
0.21 In
Wed 26
Dec
00:00

NW
NW

9 / 15 mph 42 / 37°F 86% 1034 mb
Low level cloud: 54%
Mid level cloud: 37%
High level cloud: 13%
Most Significant Cloud Type: low
68%
0.04 In
06:00

W
W

9 / 15 mph 41 / 36°F 83% 1017 mb
Low level cloud: 17%
Mid level cloud: 5%
High level cloud: 20%
Most Significant Cloud Type: low
20%
0.02 In
12:00

WNW
WNW

8 / 16 mph 37 / 31°F 83% 1035 mb
Low level cloud: 57%
Mid level cloud: 48%
High level cloud: 44%
Most Significant Cloud Type: low
79%
0.02 In
18:00

S
S

20 / 42 mph 41 / 31°F 87% 1016 mb
Low level cloud: 91%
Mid level cloud: 43%
High level cloud: 56%
Most Significant Cloud Type: low
100%
0.02 In
Thu 27
Dec
00:00

WSW
WSW

7 / 15 mph 37 / 31°F 86% 1033 mb
Low level cloud: 71%
Mid level cloud: 71%
High level cloud: 75%
Most Significant Cloud Type: low
100%
0.01 In
06:00

WSW
WSW

19 / 39 mph 37 / 27°F 94% 1011 mb
Low level cloud: 74%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
91%
0.26 In
12:00

WSW
WSW

10 / 21 mph 37 / 29°F 84% 1031 mb
Low level cloud: 72%
Mid level cloud: 89%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.01 In
18:00

WSW
WSW

15 / 22 mph 44 / 37°F 71% 1022 mb
Low level cloud: 13%
Mid level cloud: 31%
High level cloud: 38%
Most Significant Cloud Type: low
27%
0.04 In
Fri 28
Dec
00:00

W
W

7 / 12 mph 42 / 38°F 91% 1031 mb
Low level cloud: 67%
Mid level cloud: 41%
High level cloud: 33%
Most Significant Cloud Type: low
84%
0.02 In
06:00

W
W

16 / 30 mph 40 / 32°F 74% 1028 mb
Low level cloud: 4%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
56%
0.01 In
12:00

WSW
WSW

6 / 14 mph 38 / 33°F 88% 1033 mb
Low level cloud: 44%
Mid level cloud: 46%
High level cloud: 34%
Most Significant Cloud Type: low
63%
0.01 In
18:00

W
W

9 / 10 mph 47 / 43°F 78% 1035 mb
Low level cloud: 7%
Mid level cloud: 3%
High level cloud: 42%
Most Significant Cloud Type: low
12%
0.01 In
Sat 29
Dec
00:00

SSW
SSW

4 / 6 mph 43 / 41°F 94% 1033 mb
Low level cloud: 33%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
34%
0.00 In
06:00

SSW
SSW

12 / 23 mph 40 / 33°F 89% 1033 mb
Low level cloud: 53%
Mid level cloud: 6%
High level cloud: 40%
Most Significant Cloud Type: low
60%
0.00 In
12:00

SE
SE

5 / 10 mph 38 / 35°F 89% 1033 mb
Low level cloud: 23%
Mid level cloud: 3%
High level cloud: 1%
Most Significant Cloud Type: low
24%
0.00 In
18:00

SSW
SSW

18 / 34 mph 45 / 37°F 91% 1027 mb
Low level cloud: 83%
Mid level cloud: 81%
High level cloud: 93%
Most Significant Cloud Type: low
100%
0.04 In
Sun 30
Dec
00:00

SSE
SSE

7 / 12 mph 39 / 34°F 95% 1033 mb
Low level cloud: 51%
Mid level cloud: 3%
High level cloud: 22%
Most Significant Cloud Type: low
54%
0.00 In
06:00

SW
SW

17 / 35 mph 37 / 27°F 94% 1017 mb
Low level cloud: 77%
Mid level cloud: 57%
High level cloud: 49%
Most Significant Cloud Type: low
100%
0.20 In
12:00

S
S

13 / 26 mph 37 / 29°F 86% 1032 mb
Low level cloud: 70%
Mid level cloud: 4%
High level cloud: 18%
Most Significant Cloud Type: low
73%
0.00 In
18:00

WNW
WNW

14 / 22 mph 42 / 34°F 75% 1021 mb
Low level cloud: 11%
Mid level cloud: 23%
High level cloud: 73%
Most Significant Cloud Type: low
27%
0.20 In

Other Locations Near to Porth-llwyd

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure