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Rayners Lane 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Rayners Lane

Hillingdon, United Kingdom

Long range weather outlook for Rayners Lane includes 14 day forecast summary:

Reviewing the forecast for Rayners Lane Over the next 14 days and the average daytime maximum temperature will be around 9°C, with a high for the two weeks of 12°C expected on the morning of Saturday 22nd. The mean minimum temperature will be 5°C, dipping to its lowest on the morning of Saturday 15th at 2°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. Predictions are Saturday 15th will have the most precipitation with an accumulation of around 8.0mm. On the whole winds are likely to be moderate.

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

SE
SE

19 / 28 mph 39 / 29°F 85% 1007 mb
Low level cloud: 92%
Mid level cloud: 82%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.10 In of precipitation over the past 3 hours.
0.10 In
18:00

SSE
SSE

20 / 31 mph 42 / 33°F 88% 1002 mb
Low level cloud: 94%
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
21:00

SSW
SSW

11 / 20 mph 47 / 42°F 92% 1001 mb
Low level cloud: 64%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
67%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
Sun 16
Dec
00:00

SW
SW

12 / 23 mph 43 / 36°F 83% 1003 mb
Low level cloud: 5%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
36%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SW
SW

9 / 16 mph 42 / 36°F 83% 1005 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SW
SW

8 / 15 mph 40 / 35°F 87% 1006 mb
Low level cloud: 6%
Mid level cloud: 77%
High level cloud: 0%
Most Significant Cloud Type: medium
94%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SW
SW

8 / 12 mph 43 / 38°F 89% 1007 mb
Low level cloud: 13%
Mid level cloud: 44%
High level cloud: 9%
Most Significant Cloud Type: medium
79%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
12:00

SW
SW

8 / 12 mph 46 / 42°F 75% 1007 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 70%
Most Significant Cloud Type: medium
27%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

SSW
SSW

6 / 9 mph 47 / 44°F 82% 1007 mb
Low level cloud: 2%
Mid level cloud: 27%
High level cloud: 95%
Most Significant Cloud Type: medium
35%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

SSW
SSW

6 / 9 mph 46 / 43°F 89% 1008 mb
Low level cloud: 17%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.02 In of precipitation over the past 3 hours.
0.02 In
21:00

WSW
WSW

6 / 8 mph 44 / 41°F 89% 1010 mb
Low level cloud: 3%
Mid level cloud: 10%
High level cloud: 65%
Most Significant Cloud Type: medium
21%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Mon 17
Dec
00:00

WSW
WSW

6 / 10 mph 41 / 37°F 89% 1012 mb
Low level cloud: 3%
Mid level cloud: 5%
High level cloud: 19%
Most Significant Cloud Type: low
7%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SW
SW

7 / 12 mph 40 / 35°F 89% 1014 mb
Low level cloud: 11%
Mid level cloud: 11%
High level cloud: 17%
Most Significant Cloud Type: low
16%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

WSW
WSW

6 / 12 mph 40 / 35°F 90% 1015 mb
Low level cloud: 6%
Mid level cloud: 5%
High level cloud: 21%
Most Significant Cloud Type: low
10%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SW
SW

6 / 13 mph 40 / 35°F 88% 1018 mb
Low level cloud: 2%
Mid level cloud: 5%
High level cloud: 42%
Most Significant Cloud Type: medium
12%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SW
SW

8 / 13 mph 46 / 42°F 77% 1019 mb
Low level cloud: 3%
Mid level cloud: 9%
High level cloud: 16%
Most Significant Cloud Type: low
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

S
S

7 / 13 mph 47 / 43°F 84% 1019 mb
Low level cloud: 18%
Mid level cloud: 10%
High level cloud: 19%
Most Significant Cloud Type: low
24%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

SSW
SSW

9 / 17 mph 46 / 41°F 90% 1019 mb
Low level cloud: 32%
Mid level cloud: 44%
High level cloud: 86%
Most Significant Cloud Type: low
57%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

S
S

11 / 21 mph 47 / 42°F 90% 1019 mb
Low level cloud: 50%
Mid level cloud: 73%
High level cloud: 92%
Most Significant Cloud Type: low
86%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Tue 18
Dec
00:00

S
S

12 / 21 mph 48 / 42°F 91% 1018 mb
Low level cloud: 82%
Mid level cloud: 19%
High level cloud: 13%
Most Significant Cloud Type: low
90%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

S
S

13 / 26 mph 47 / 41°F 88% 1016 mb
Low level cloud: 90%
Mid level cloud: 13%
High level cloud: 80%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

S
S

14 / 27 mph 46 / 40°F 84% 1015 mb
Low level cloud: 64%
Mid level cloud: 3%
High level cloud: 22%
Most Significant Cloud Type: low
68%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

S
S

18 / 29 mph 48 / 41°F 78% 1013 mb
Low level cloud: 32%
Mid level cloud: 0%
High level cloud: 59%
Most Significant Cloud Type: low
39%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SSE
SSE

21 / 33 mph 50 / 43°F 61% 1010 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 81%
Most Significant Cloud Type: medium
16%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

SSE
SSE

19 / 28 mph 51 / 44°F 57% 1006 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 17%
Most Significant Cloud Type: medium
44%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

SSE
SSE

18 / 26 mph 50 / 44°F 62% 1003 mb
Low level cloud: 0%
Mid level cloud: 78%
High level cloud: 80%
Most Significant Cloud Type: medium
81%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

S
S

20 / 27 mph 48 / 41°F 78% 1002 mb
Low level cloud: 91%
Mid level cloud: 76%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.05 In of precipitation over the past 3 hours.
0.05 In
Wed 19
Dec
00:00

SW
SW

15 / 31 mph 45 / 38°F 86% 1002 mb
Low level cloud: 47%
Mid level cloud: 29%
High level cloud: 32%
Most Significant Cloud Type: low
61%
Expect 0.09 In of precipitation over the past 3 hours.
0.09 In
03:00

WSW
WSW

10 / 19 mph 43 / 37°F 81% 1005 mb
Low level cloud: 4%
Mid level cloud: 82%
High level cloud: 0%
Most Significant Cloud Type: medium
92%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SW
SW

8 / 15 mph 42 / 37°F 84% 1008 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SSW
SSW

6 / 8 mph 45 / 42°F 85% 1011 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 28%
Most Significant Cloud Type: medium
12%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SSW
SSW

6 / 7 mph 49 / 46°F 75% 1011 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 48%
Most Significant Cloud Type: medium
15%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

SSW
SSW

4 / 4 mph 50 / 49°F 79% 1012 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 31%
Most Significant Cloud Type: medium
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

S
S

5 / 6 mph 50 / 48°F 84% 1013 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

SSW
SSW

6 / 7 mph 47 / 45°F 85% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 32%
Most Significant Cloud Type: medium
5%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Thu 20
Dec
00:00

SW
SW

6 / 11 mph 43 / 39°F 85% 1014 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 75%
Most Significant Cloud Type: medium
20%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SSW
SSW

6 / 10 mph 42 / 38°F 85% 1015 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 7%
Most Significant Cloud Type: medium
11%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SSW
SSW

6 / 11 mph 40 / 36°F 88% 1016 mb
Low level cloud: 6%
Mid level cloud: 55%
High level cloud: 91%
Most Significant Cloud Type: medium
74%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SW
SW

5 / 8 mph 42 / 39°F 92% 1017 mb
Low level cloud: 25%
Mid level cloud: 83%
High level cloud: 1%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

W
W

5 / 8 mph 45 / 42°F 82% 1018 mb
Low level cloud: 8%
Mid level cloud: 13%
High level cloud: 11%
Most Significant Cloud Type: low
13%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

W
W

4 / 6 mph 46 / 44°F 84% 1019 mb
Low level cloud: 2%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

WSW
WSW

4 / 6 mph 46 / 44°F 90% 1021 mb
Low level cloud: 5%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

WSW
WSW

4 / 6 mph 44 / 42°F 91% 1022 mb
Low level cloud: 5%
Mid level cloud: 23%
High level cloud: 1%
Most Significant Cloud Type: medium
36%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Fri 21
Dec
00:00

SW
SW

4 / 9 mph 40 / 37°F 91% 1023 mb
Low level cloud: 5%
Mid level cloud: 18%
High level cloud: 85%
Most Significant Cloud Type: medium
35%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SSW
SSW

5 / 9 mph 40 / 36°F 91% 1023 mb
Low level cloud: 7%
Mid level cloud: 4%
High level cloud: 64%
Most Significant Cloud Type: medium
27%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

S
S

6 / 11 mph 40 / 36°F 91% 1022 mb
Low level cloud: 8%
Mid level cloud: 89%
High level cloud: 76%
Most Significant Cloud Type: medium
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

S
S

9 / 17 mph 44 / 39°F 90% 1020 mb
Low level cloud: 37%
Mid level cloud: 88%
High level cloud: 21%
Most Significant Cloud Type: low
70%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
12:00

S
S

15 / 23 mph 48 / 42°F 91% 1018 mb
Low level cloud: 95%
Mid level cloud: 68%
High level cloud: 57%
Most Significant Cloud Type: low
100%
Expect 0.05 In of precipitation over the past 3 hours.
0.05 In
15:00

S
S

16 / 25 mph 50 / 44°F 90% 1015 mb
Low level cloud: 96%
Mid level cloud: 72%
High level cloud: 36%
Most Significant Cloud Type: low
100%
Expect 0.04 In of precipitation over the past 3 hours.
0.04 In
18:00

S
S

17 / 28 mph 51 / 46°F 90% 1011 mb
Low level cloud: 92%
Mid level cloud: 72%
High level cloud: 74%
Most Significant Cloud Type: low
100%
Expect 0.06 In of precipitation over the past 3 hours.
0.06 In
21:00

SSW
SSW

13 / 21 mph 52 / 48°F 93% 1009 mb
Low level cloud: 97%
Mid level cloud: 73%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.14 In of precipitation over the past 3 hours.
0.14 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sat 22
Dec
00:00

E
E

4 / 5 mph 43 / 41°F 92% 1018 mb
Low level cloud: 28%
Mid level cloud: 4%
High level cloud: 85%
Most Significant Cloud Type: low
39%
0.00 In
06:00

W
W

20 / 42 mph 43 / 34°F 78% 993 mb
Low level cloud: 84%
Mid level cloud: 29%
High level cloud: 35%
Most Significant Cloud Type: low
98%
0.04 In
12:00

WSW
WSW

8 / 11 mph 46 / 42°F 82% 1006 mb
Low level cloud: 36%
Mid level cloud: 45%
High level cloud: 71%
Most Significant Cloud Type: low
60%
0.00 In
18:00

WNW
WNW

7 / 8 mph 48 / 45°F 85% 1006 mb
Low level cloud: 16%
Mid level cloud: 9%
High level cloud: 84%
Most Significant Cloud Type: low
29%
0.00 In
Sun 23
Dec
00:00

W
W

15 / 30 mph 42 / 34°F 80% 1002 mb
Low level cloud: 91%
Mid level cloud: 76%
High level cloud: 22%
Most Significant Cloud Type: low
100%
0.03 In
06:00

SSE
SSE

6 / 9 mph 45 / 41°F 84% 1018 mb
Low level cloud: 4%
Mid level cloud: 77%
High level cloud: 82%
Most Significant Cloud Type: medium
92%
0.00 In
12:00

SW
SW

17 / 30 mph 54 / 49°F 88% 1016 mb
Low level cloud: 92%
Mid level cloud: 60%
High level cloud: 81%
Most Significant Cloud Type: low
100%
0.16 In
18:00

ESE
ESE

6 / 8 mph 50 / 47°F 94% 1000 mb
Low level cloud: 91%
Mid level cloud: 31%
High level cloud: 87%
Most Significant Cloud Type: low
100%
0.03 In
Mon 24
Dec
00:00

SW
SW

19 / 30 mph 55 / 50°F 87% 1011 mb
Low level cloud: 95%
Mid level cloud: 80%
High level cloud: 78%
Most Significant Cloud Type: low
100%
0.12 In
06:00

ESE
ESE

5 / 7 mph 50 / 48°F 91% 1000 mb
Low level cloud: 13%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.04 In
12:00

WSW
WSW

18 / 26 mph 51 / 46°F 67% 1011 mb
Low level cloud: 39%
Mid level cloud: 45%
High level cloud: 91%
Most Significant Cloud Type: low
66%
0.00 In
18:00

NNW
NNW

9 / 10 mph 47 / 44°F 89% 1007 mb
Low level cloud: 82%
Mid level cloud: 31%
High level cloud: 14%
Most Significant Cloud Type: low
93%
0.00 In
Tue 25
Dec
00:00

WNW
WNW

14 / 19 mph 44 / 37°F 76% 1016 mb
Low level cloud: 7%
Mid level cloud: 15%
High level cloud: 22%
Most Significant Cloud Type: low
15%
0.00 In
06:00

WSW
WSW

6 / 8 mph 41 / 37°F 86% 1014 mb
Low level cloud: 7%
Mid level cloud: 12%
High level cloud: 78%
Most Significant Cloud Type: medium
34%
0.00 In
12:00

NW
NW

14 / 18 mph 45 / 39°F 72% 1027 mb
Low level cloud: 1%
Mid level cloud: 5%
High level cloud: 34%
Most Significant Cloud Type: medium
8%
0.00 In
18:00

SSW
SSW

18 / 27 mph 47 / 41°F 91% 1009 mb
Low level cloud: 91%
Mid level cloud: 98%
High level cloud: 78%
Most Significant Cloud Type: low
100%
0.10 In
Wed 26
Dec
00:00

WNW
WNW

8 / 9 mph 42 / 37°F 88% 1032 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.00 In
06:00

WNW
WNW

10 / 12 mph 43 / 37°F 88% 1018 mb
Low level cloud: 4%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
6%
0.07 In
12:00

NW
NW

9 / 11 mph 46 / 41°F 83% 1034 mb
Low level cloud: 9%
Mid level cloud: 6%
High level cloud: 11%
Most Significant Cloud Type: low
12%
0.00 In
18:00

S
S

9 / 14 mph 44 / 39°F 88% 1024 mb
Low level cloud: 1%
Mid level cloud: 53%
High level cloud: 36%
Most Significant Cloud Type: medium
57%
0.00 In
Thu 27
Dec
00:00

W
W

6 / 10 mph 40 / 35°F 93% 1033 mb
Low level cloud: 15%
Mid level cloud: 76%
High level cloud: 46%
Most Significant Cloud Type: medium
100%
0.00 In
06:00

SSW
SSW

17 / 27 mph 52 / 47°F 92% 1019 mb
Low level cloud: 74%
Mid level cloud: 76%
High level cloud: 82%
Most Significant Cloud Type: low
100%
0.03 In
12:00

W
W

10 / 12 mph 43 / 38°F 86% 1032 mb
Low level cloud: 15%
Mid level cloud: 67%
High level cloud: 51%
Most Significant Cloud Type: medium
100%
0.00 In
18:00

W
W

10 / 12 mph 51 / 47°F 85% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 21%
Most Significant Cloud Type: high
21%
0.05 In
Fri 28
Dec
00:00

W
W

9 / 13 mph 41 / 36°F 94% 1031 mb
Low level cloud: 31%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
49%
0.01 In
06:00

WSW
WSW

9 / 15 mph 41 / 35°F 86% 1030 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
0.00 In
12:00

WNW
WNW

7 / 8 mph 46 / 42°F 86% 1033 mb
Low level cloud: 18%
Mid level cloud: 50%
High level cloud: 33%
Most Significant Cloud Type: low
39%
0.00 In
18:00

WSW
WSW

6 / 7 mph 53 / 51°F 90% 1037 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
0.00 In
Sat 29
Dec
00:00

WNW
WNW

5 / 6 mph 43 / 40°F 95% 1033 mb
Low level cloud: 28%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
30%
0.00 In
06:00

SW
SW

4 / 5 mph 43 / 40°F 92% 1037 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
2%
0.00 In
12:00

NNE
NNE

4 / 5 mph 46 / 44°F 90% 1033 mb
Low level cloud: 45%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: low
47%
0.00 In
18:00

SSW
SSW

8 / 12 mph 44 / 39°F 90% 1032 mb
Low level cloud: 2%
Mid level cloud: 42%
High level cloud: 75%
Most Significant Cloud Type: medium
49%
0.00 In
Sun 30
Dec
00:00

E
E

3 / 4 mph 44 / 43°F 95% 1035 mb
Low level cloud: 29%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.01 In
06:00

SSW
SSW

12 / 19 mph 44 / 38°F 88% 1024 mb
Low level cloud: 50%
Mid level cloud: 61%
High level cloud: 41%
Most Significant Cloud Type: low
75%
0.01 In
12:00

SSE
SSE

7 / 9 mph 48 / 45°F 83% 1036 mb
Low level cloud: 14%
Mid level cloud: 3%
High level cloud: 12%
Most Significant Cloud Type: low
16%
0.00 In
18:00

WNW
WNW

11 / 14 mph 46 / 41°F 88% 1021 mb
Low level cloud: 4%
Mid level cloud: 14%
High level cloud: 81%
Most Significant Cloud Type: medium
29%
0.09 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