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Llandudno 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Llandudno

Denbighshire, United Kingdom

Long range weather outlook for Llandudno includes 14 day forecast summary:

Taking a look at Llandudno over the coming two weeks and the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 23°C expected on the afternoon of Thursday 19th. The average minimum temperature will be 6°C, dipping to its lowest on the morning of Friday 27th at 3°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. Current predictions suggest Thursday 26th will have the most precipitation with an accumulation of around 9.0mm. On the whole winds are likely to be moderate. The forecast suggests the strongest wind will be on the afternoon of Thursday 26th, coming from a south westerly direction, and reaching around 29mph.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 19
Apr		18:00

NNW
NNW

 3 / 3 mph 71 / 69°F 82% 1023 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

SW
SW

 2 / 4 mph 53 / 53°F 95% 1024 mb
Low level cloud: 9%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Fri 20
Apr		00:00

SW
SW

 4 / 7 mph 50 / 49°F 95% 1025 mb
Low level cloud: 4%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SW
SW

 4 / 8 mph 48 / 46°F 94% 1024 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SW
SW

 4 / 9 mph 45 / 43°F 89% 1025 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

WNW
WNW

 5 / 6 mph 61 / 59°F 69% 1025 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

NNW
NNW

 6 / 7 mph 64 / 62°F 61% 1026 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

N
N

 6 / 7 mph 64 / 62°F 60% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

NNE
NNE

 5 / 5 mph 63 / 62°F 71% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

SE
SE

 1 / 2 mph 52 / 52°F 78% 1025 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 2%
Most Significant Cloud Type: medium
1%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Sat 21
Apr		00:00

SSE
SSE

 2 / 4 mph 43 / 43°F 76% 1025 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: medium
3%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SSE
SSE

 4 / 8 mph 44 / 42°F 72% 1024 mb
Low level cloud: 10%
Mid level cloud: 7%
High level cloud: 2%
Most Significant Cloud Type: low
12%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SSE
SSE

 5 / 10 mph 45 / 42°F 72% 1023 mb
Low level cloud: 4%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: medium
26%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SE
SE

 7 / 8 mph 62 / 60°F 68% 1021 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 3%
Most Significant Cloud Type: medium
14%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SSE
SSE

 7 / 8 mph 72 / 76°F 65% 1019 mb
Low level cloud: 20%
Mid level cloud: 7%
High level cloud: 15%
Most Significant Cloud Type: low
24%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

SSW
SSW

 6 / 9 mph 72 / 70°F 77% 1016 mb
Low level cloud: 10%
Mid level cloud: 11%
High level cloud: 33%
Most Significant Cloud Type: low
17%
Expect 0.09 In of precipitation over the past 3 hours.
0.09 In
18:00

SW
SW

 4 / 6 mph 66 / 64°F 87% 1014 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 31%
Most Significant Cloud Type: medium
13%
Expect 0.08 In of precipitation over the past 3 hours.
0.08 In
21:00

SSW
SSW

 5 / 10 mph 55 / 55°F 94% 1013 mb
Low level cloud: 3%
Mid level cloud: 13%
High level cloud: 99%
Most Significant Cloud Type: medium
24%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
Sun 22
Apr		00:00

SSW
SSW

 6 / 13 mph 54 / 52°F 96% 1012 mb
Low level cloud: 32%
Mid level cloud: 6%
High level cloud: 86%
Most Significant Cloud Type: low
44%
Expect 0.10 In of precipitation over the past 3 hours.
0.10 In
03:00

SW
SW

 6 / 11 mph 54 / 53°F 95% 1011 mb
Low level cloud: 75%
Mid level cloud: 11%
High level cloud: 98%
Most Significant Cloud Type: low
90%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
06:00

WSW
WSW

 6 / 9 mph 53 / 50°F 96% 1010 mb
Low level cloud: 39%
Mid level cloud: 60%
High level cloud: 99%
Most Significant Cloud Type: low
71%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
09:00

WSW
WSW

 7 / 9 mph 58 / 55°F 76% 1010 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
19%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
12:00

W
W

 9 / 10 mph 57 / 55°F 72% 1010 mb
Low level cloud: 81%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

W
W

 11 / 12 mph 59 / 56°F 65% 1010 mb
Low level cloud: 34%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
37%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

WSW
WSW

 11 / 12 mph 55 / 50°F 75% 1010 mb
Low level cloud: 10%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
70%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

WSW
WSW

 10 / 14 mph 49 / 45°F 84% 1012 mb
Low level cloud: 6%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Mon 23
Apr		00:00

WSW
WSW

 10 / 17 mph 45 / 40°F 88% 1013 mb
Low level cloud: 2%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

WSW
WSW

 9 / 15 mph 43 / 38°F 91% 1014 mb
Low level cloud: 21%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

WSW
WSW

 11 / 15 mph 45 / 39°F 88% 1014 mb
Low level cloud: 25%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

WSW
WSW

 13 / 15 mph 53 / 48°F 72% 1015 mb
Low level cloud: 17%
Mid level cloud: 16%
High level cloud: 83%
Most Significant Cloud Type: low
32%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

WSW
WSW

 14 / 16 mph 59 / 56°F 66% 1015 mb
Low level cloud: 16%
Mid level cloud: 44%
High level cloud: 60%
Most Significant Cloud Type: low
38%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

WSW
WSW

 17 / 19 mph 58 / 53°F 78% 1014 mb
Low level cloud: 46%
Mid level cloud: 61%
High level cloud: 77%
Most Significant Cloud Type: low
76%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

WSW
WSW

 14 / 19 mph 54 / 49°F 87% 1014 mb
Low level cloud: 48%
Mid level cloud: 72%
High level cloud: 81%
Most Significant Cloud Type: low
82%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
21:00

WSW
WSW

 8 / 13 mph 49 / 46°F 94% 1015 mb
Low level cloud: 55%
Mid level cloud: 45%
High level cloud: 46%
Most Significant Cloud Type: low
76%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Tue 24
Apr		00:00

W
W

 3 / 5 mph 50 / 49°F 97% 1014 mb
Low level cloud: 89%
Mid level cloud: 72%
High level cloud: 93%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
03:00

NNE
NNE

 0 / 0 mph 50 / 50°F 98% 1012 mb
Low level cloud: 88%
Mid level cloud: 66%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
06:00

SW
SW

 8 / 13 mph 50 / 47°F 96% 1010 mb
Low level cloud: 69%
Mid level cloud: 69%
High level cloud: 59%
Most Significant Cloud Type: low
99%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
09:00

SW
SW

 16 / 25 mph 53 / 48°F 92% 1008 mb
Low level cloud: 82%
Mid level cloud: 59%
High level cloud: 77%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
12:00

SW
SW

 17 / 23 mph 52 / 47°F 92% 1007 mb
Low level cloud: 86%
Mid level cloud: 43%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
15:00

W
W

 16 / 21 mph 54 / 49°F 87% 1007 mb
Low level cloud: 88%
Mid level cloud: 19%
High level cloud: 35%
Most Significant Cloud Type: low
98%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
18:00

WNW
WNW

 11 / 12 mph 54 / 49°F 81% 1008 mb
Low level cloud: 35%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
40%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

WSW
WSW

 8 / 16 mph 45 / 40°F 90% 1011 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Wed 25
Apr		00:00

W
W

 10 / 18 mph 43 / 38°F 90% 1011 mb
Low level cloud: 16%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

WSW
WSW

 10 / 17 mph 42 / 36°F 89% 1012 mb
Low level cloud: 13%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
19%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

WSW
WSW

 11 / 16 mph 44 / 38°F 85% 1012 mb
Low level cloud: 13%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
19%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

W
W

 17 / 20 mph 49 / 43°F 78% 1013 mb
Low level cloud: 13%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: medium
82%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
12:00

W
W

 19 / 23 mph 54 / 48°F 62% 1014 mb
Low level cloud: 8%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: medium
71%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
15:00

W
W

 19 / 23 mph 54 / 49°F 60% 1014 mb
Low level cloud: 11%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
74%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
18:00

W
W

 16 / 21 mph 50 / 44°F 71% 1015 mb
Low level cloud: 22%
Mid level cloud: 44%
High level cloud: 12%
Most Significant Cloud Type: low
38%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
21:00

W
W

 12 / 23 mph 44 / 38°F 78% 1017 mb
Low level cloud: 3%
Mid level cloud: 44%
High level cloud: 74%
Most Significant Cloud Type: medium
54%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 26
Apr		00:00

W
W

 15 / 24 mph 43 / 36°F 82% 1010 mb
Low level cloud: 68%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
73%
0.00 In
06:00

WSW
WSW

 9 / 13 mph 44 / 39°F 86% 1014 mb
Low level cloud: 20%
Mid level cloud: 15%
High level cloud: 59%
Most Significant Cloud Type: low
32%
0.00 In
12:00

NW
NW

 15 / 17 mph 51 / 46°F 61% 1009 mb
Low level cloud: 64%
Mid level cloud: 3%
High level cloud: 3%
Most Significant Cloud Type: low
65%
0.01 In
18:00

WNW
WNW

 13 / 15 mph 53 / 49°F 70% 1019 mb
Low level cloud: 27%
Mid level cloud: 24%
High level cloud: 79%
Most Significant Cloud Type: low
44%
0.01 In
Fri 27
Apr		00:00

WSW
WSW

 11 / 21 mph 41 / 35°F 85% 1013 mb
Low level cloud: 1%
Mid level cloud: 5%
High level cloud: 32%
Most Significant Cloud Type: medium
7%
0.01 In
06:00

WSW
WSW

 7 / 10 mph 42 / 37°F 88% 1012 mb
Low level cloud: 1%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
47%
0.00 In
12:00

WSW
WSW

 9 / 10 mph 53 / 50°F 59% 1023 mb
Low level cloud: 1%
Mid level cloud: 59%
High level cloud: 73%
Most Significant Cloud Type: medium
63%
0.00 In
18:00

E
E

 5 / 6 mph 53 / 51°F 91% 1015 mb
Low level cloud: 53%
Mid level cloud: 81%
High level cloud: 97%
Most Significant Cloud Type: low
93%
0.06 In
Sat 28
Apr		00:00

SW
SW

 10 / 15 mph 44 / 38°F 90% 1013 mb
Low level cloud: 31%
Mid level cloud: 75%
High level cloud: 88%
Most Significant Cloud Type: low
67%
0.01 In
06:00

S
S

 3 / 4 mph 48 / 47°F 97% 1007 mb
Low level cloud: 66%
Mid level cloud: 61%
High level cloud: 0%
Most Significant Cloud Type: low
87%
0.04 In
12:00

SW
SW

 11 / 13 mph 48 / 43°F 91% 1006 mb
Low level cloud: 74%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.05 In
18:00

WNW
WNW

 16 / 19 mph 45 / 38°F 90% 1006 mb
Low level cloud: 90%
Mid level cloud: 57%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.03 In
Sun 29
Apr		00:00

WNW
WNW

 10 / 17 mph 41 / 35°F 89% 1005 mb
Low level cloud: 40%
Mid level cloud: 33%
High level cloud: 91%
Most Significant Cloud Type: low
62%
0.00 In
06:00

NW
NW

 12 / 17 mph 42 / 35°F 93% 1012 mb
Low level cloud: 93%
Mid level cloud: 78%
High level cloud: 8%
Most Significant Cloud Type: low
100%
0.06 In
12:00

WNW
WNW

 12 / 15 mph 51 / 47°F 64% 1005 mb
Low level cloud: 10%
Mid level cloud: 7%
High level cloud: 9%
Most Significant Cloud Type: low
13%
0.03 In
18:00

WSW
WSW

 10 / 13 mph 50 / 46°F 76% 1009 mb
Low level cloud: 11%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: medium
78%
0.05 In
Mon 30
Apr		00:00

WNW
WNW

 6 / 11 mph 38 / 34°F 93% 1005 mb
Low level cloud: 28%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.06 In
06:00

SSE
SSE

 13 / 16 mph 42 / 35°F 92% 1000 mb
Low level cloud: 61%
Mid level cloud: 45%
High level cloud: 70%
Most Significant Cloud Type: low
85%
0.02 In
12:00

NW
NW

 16 / 24 mph 49 / 43°F 86% 1004 mb
Low level cloud: 66%
Mid level cloud: 29%
High level cloud: 1%
Most Significant Cloud Type: low
76%
0.11 In
18:00

S
S

 9 / 11 mph 47 / 43°F 94% 993 mb
Low level cloud: 60%
Mid level cloud: 59%
High level cloud: 59%
Most Significant Cloud Type: low
87%
0.36 In
Tue 01
May		00:00

NNW
NNW

 11 / 21 mph 41 / 34°F 91% 1008 mb
Low level cloud: 3%
Mid level cloud: 46%
High level cloud: 6%
Most Significant Cloud Type: medium
55%
0.09 In
06:00

SE
SE

 13 / 20 mph 39 / 31°F 93% 990 mb
Low level cloud: 27%
Mid level cloud: 29%
High level cloud: 8%
Most Significant Cloud Type: low
37%
0.04 In
12:00

N
N

 13 / 17 mph 47 / 42°F 81% 1016 mb
Low level cloud: 75%
Mid level cloud: 42%
High level cloud: 0%
Most Significant Cloud Type: low
89%
0.07 In
18:00

S
S

 15 / 28 mph 49 / 43°F 86% 988 mb
Low level cloud: 28%
Mid level cloud: 21%
High level cloud: 56%
Most Significant Cloud Type: low
41%
0.22 In
Wed 02
May		00:00

N
N

 2 / 2 mph 41 / 41°F 91% 1022 mb
Low level cloud: 4%
Mid level cloud: 6%
High level cloud: 30%
Most Significant Cloud Type: low
9%
0.02 In
06:00

SSE
SSE

 14 / 19 mph 45 / 38°F 91% 991 mb
Low level cloud: 68%
Mid level cloud: 27%
High level cloud: 17%
Most Significant Cloud Type: low
79%
0.03 In
12:00

W
W

 7 / 8 mph 55 / 54°F 60% 1024 mb
Low level cloud: 13%
Mid level cloud: 9%
High level cloud: 17%
Most Significant Cloud Type: low
17%
0.00 In
18:00

S
S

 11 / 20 mph 50 / 46°F 84% 995 mb
Low level cloud: 4%
Mid level cloud: 20%
High level cloud: 57%
Most Significant Cloud Type: medium
32%
0.23 In
Thu 03
May		00:00

SW
SW

 9 / 15 mph 42 / 37°F 93% 1026 mb
Low level cloud: 63%
Mid level cloud: 66%
High level cloud: 34%
Most Significant Cloud Type: low
90%
0.01 In
06:00

SSE
SSE

 14 / 18 mph 45 / 38°F 90% 997 mb
Low level cloud: 61%
Mid level cloud: 74%
High level cloud: 97%
Most Significant Cloud Type: low
98%
0.01 In
12:00

NW
NW

 10 / 11 mph 55 / 52°F 88% 1028 mb
Low level cloud: 64%
Mid level cloud: 14%
High level cloud: 18%
Most Significant Cloud Type: low
71%
0.11 In
18:00

SW
SW

 15 / 24 mph 54 / 49°F 74% 1001 mb
Low level cloud: 3%
Mid level cloud: 10%
High level cloud: 14%
Most Significant Cloud Type: medium
19%
0.11 In
Fri 04
May		00:00

NNW
NNW

 5 / 10 mph 42 / 39°F 92% 1034 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 18%
Most Significant Cloud Type: high
17%
0.00 In
06:00

SSW
SSW

 6 / 9 mph 42 / 38°F 97% 1010 mb
Low level cloud: 40%
Mid level cloud: 11%
High level cloud: 3%
Most Significant Cloud Type: low
44%
0.00 In
12:00

N
N

 5 / 6 mph 63 / 63°F 57% 1035 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 5%
Most Significant Cloud Type: medium
5%
0.00 In
18:00

NNE
NNE

 9 / 10 mph 57 / 55°F 75% 1013 mb
Low level cloud: 32%
Mid level cloud: 14%
High level cloud: 59%
Most Significant Cloud Type: low
44%
0.00 In

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