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Afon Taf Fawr 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Afon Taf Fawr

Rhondda, Cynon, Taff, United Kingdom

Long range weather outlook for Afon Taf Fawr includes 14 day forecast summary:

Over the next 14 days the Afon Taf Fawr forecast suggests the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 17°C expected on the afternoon of Wednesday 29th. The average minimum temperature will be 8°C, dipping to its lowest on the morning of Tuesday 28th at 3°C. Expect the next 14 days have some days seeing a little precipitation and some days with rain. Current predictions suggest Friday 31st will have the most precipitation with an accumulation of around 12.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 22
May		15:00

NW
NW

 17 / 20 mph 60 / 59°F 91% 1008 mb
Low level cloud: 85%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 12 / 13 mph 58 / 55°F 93% 1009 mb
Low level cloud: 98%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 11 / 13 mph 55 / 52°F 93% 1011 mb
Low level cloud: 94%
Mid level cloud: 18%
High level cloud: 63%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May		00:00

NW
NW

 16 / 23 mph 48 / 42°F 90% 1012 mb
Low level cloud: 99%
Mid level cloud: 18%
High level cloud: 48%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 15 / 20 mph 47 / 41°F 85% 1013 mb
Low level cloud: 94%
Mid level cloud: 16%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 13 / 16 mph 46 / 40°F 86% 1014 mb
Low level cloud: 94%
Mid level cloud: 5%
High level cloud: 67%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 14 / 16 mph 49 / 43°F 80% 1015 mb
Low level cloud: 94%
Mid level cloud: 5%
High level cloud: 33%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 13 / 15 mph 51 / 47°F 77% 1016 mb
Low level cloud: 95%
Mid level cloud: 4%
High level cloud: 48%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 13 / 15 mph 53 / 49°F 78% 1016 mb
Low level cloud: 93%
Mid level cloud: 5%
High level cloud: 43%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 11 / 13 mph 52 / 48°F 80% 1017 mb
Low level cloud: 83%
Mid level cloud: 39%
High level cloud: 44%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 11 / 13 mph 50 / 45°F 79% 1018 mb
Low level cloud: 39%
Mid level cloud: 27%
High level cloud: 48%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 24
May		00:00

WSW
WSW

 4 / 5 mph 47 / 46°F 83% 1018 mb
Low level cloud: 49%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SW
SW

 2 / 3 mph 46 / 46°F 83% 1018 mb
Low level cloud: 70%
Mid level cloud: 86%
High level cloud: 85%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 3 / 3 mph 49 / 48°F 86% 1018 mb
Low level cloud: 19%
Mid level cloud: 44%
High level cloud: 11%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 6 / 6 mph 55 / 53°F 75% 1018 mb
Low level cloud: 78%
Mid level cloud: 20%
High level cloud: 7%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 9 / 10 mph 58 / 55°F 70% 1019 mb
Low level cloud: 28%
Mid level cloud: 21%
High level cloud: 8%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 8 / 9 mph 58 / 55°F 69% 1019 mb
Low level cloud: 20%
Mid level cloud: 6%
High level cloud: 32%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

 6 / 6 mph 57 / 55°F 77% 1019 mb
Low level cloud: 28%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 2 / 3 mph 48 / 47°F 89% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 25
May		00:00

WSW
WSW

 1 / 2 mph 43 / 43°F 91% 1020 mb
Low level cloud: 1%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

 2 / 3 mph 39 / 39°F 89% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

 2 / 2 mph 48 / 47°F 78% 1019 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

 7 / 8 mph 58 / 55°F 73% 1018 mb
Low level cloud: 16%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

 10 / 11 mph 61 / 59°F 68% 1018 mb
Low level cloud: 10%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 10 / 11 mph 62 / 60°F 63% 1017 mb
Low level cloud: 39%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 8 / 9 mph 59 / 56°F 80% 1017 mb
Low level cloud: 38%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 3 / 6 mph 50 / 48°F 93% 1017 mb
Low level cloud: 6%
Mid level cloud: 28%
High level cloud: 17%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 26
May		00:00

SE
SE

 3 / 6 mph 45 / 44°F 94% 1017 mb
Low level cloud: 6%
Mid level cloud: 56%
High level cloud: 51%
Most Significant Cloud Type: medium
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

 4 / 7 mph 47 / 46°F 89% 1016 mb
Low level cloud: 33%
Mid level cloud: 56%
High level cloud: 67%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

 4 / 6 mph 51 / 49°F 85% 1016 mb
Low level cloud: 68%
Mid level cloud: 71%
High level cloud: 40%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

 5 / 6 mph 56 / 54°F 88% 1015 mb
Low level cloud: 52%
Mid level cloud: 86%
High level cloud: 9%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

 12 / 15 mph 60 / 60°F 79% 1014 mb
Low level cloud: 82%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

 6 / 8 mph 59 / 56°F 93% 1014 mb
Low level cloud: 36%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
51%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

WSW
WSW

 12 / 14 mph 58 / 54°F 87% 1014 mb
Low level cloud: 47%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 7 / 13 mph 48 / 44°F 97% 1016 mb
Low level cloud: 57%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 27
May		00:00

WSW
WSW

 5 / 10 mph 45 / 42°F 99% 1017 mb
Low level cloud: 90%
Mid level cloud: 9%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 9 / 11 mph 50 / 47°F 92% 1017 mb
Low level cloud: 93%
Mid level cloud: 13%
High level cloud: 11%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 6 / 6 mph 53 / 49°F 91% 1018 mb
Low level cloud: 62%
Mid level cloud: 23%
High level cloud: 2%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 12 / 13 mph 56 / 53°F 77% 1019 mb
Low level cloud: 69%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 13 / 15 mph 59 / 59°F 64% 1020 mb
Low level cloud: 86%
Mid level cloud: 47%
High level cloud: 18%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 13 / 14 mph 58 / 55°F 65% 1020 mb
Low level cloud: 37%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 12 / 13 mph 55 / 51°F 74% 1021 mb
Low level cloud: 8%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 4 / 9 mph 43 / 40°F 92% 1023 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 3%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 28
May		00:00

W
W

 2 / 4 mph 40 / 40°F 92% 1023 mb
Low level cloud: 3%
Mid level cloud: 6%
High level cloud: 16%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 2 / 5 mph 38 / 37°F 92% 1022 mb
Low level cloud: 14%
Mid level cloud: 8%
High level cloud: 50%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 3 / 4 mph 48 / 46°F 91% 1021 mb
Low level cloud: 44%
Mid level cloud: 18%
High level cloud: 100%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 8 / 9 mph 53 / 51°F 81% 1020 mb
Low level cloud: 90%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 9 / 11 mph 55 / 52°F 75% 1020 mb
Low level cloud: 60%
Mid level cloud: 67%
High level cloud: 100%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 12 / 14 mph 58 / 55°F 75% 1018 mb
Low level cloud: 86%
Mid level cloud: 51%
High level cloud: 26%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

 7 / 8 mph 56 / 54°F 87% 1016 mb
Low level cloud: 30%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 8 / 11 mph 51 / 48°F 96% 1016 mb
Low level cloud: 51%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 29
May		00:00

NNW
NNW

 5 / 11 mph 44 / 41°F 70% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

SSE
SSE

 4 / 8 mph 53 / 52°F 92% 1017 mb
Low level cloud: 5%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: medium
24%
0.0 In
12:00

SW
SW

 10 / 21 mph 55 / 53°F 84% 1010 mb
Low level cloud: 24%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: low
55%
0.0 In
18:00

SW
SW

 9 / 19 mph 55 / 53°F 99% 1009 mb
Low level cloud: 98%
Mid level cloud: 55%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Thu 30
May		00:00

SW
SW

 15 / 31 mph 51 / 46°F 97% 1012 mb
Low level cloud: 94%
Mid level cloud: 70%
High level cloud: 19%
Most Significant Cloud Type: low
100%
0.0 In
06:00

WSW
WSW

 2 / 4 mph 54 / 54°F 92% 1010 mb
Low level cloud: 97%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SW
SW

 8 / 15 mph 63 / 63°F 59% 1012 mb
Low level cloud: 14%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.0 In
18:00

SSE
SSE

 10 / 19 mph 61 / 61°F 87% 1006 mb
Low level cloud: 76%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Fri 31
May		00:00

W
W

 2 / 5 mph 45 / 45°F 95% 1012 mb
Low level cloud: 28%
Mid level cloud: 65%
High level cloud: 18%
Most Significant Cloud Type: low
53%
0.0 In
06:00

ENE
ENE

 5 / 10 mph 57 / 57°F 95% 1004 mb
Low level cloud: 81%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SW
SW

 10 / 21 mph 57 / 55°F 74% 1011 mb
Low level cloud: 90%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

S
S

 6 / 14 mph 58 / 57°F 99% 1002 mb
Low level cloud: 98%
Mid level cloud: 75%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.5 In
Sat 01
Jun		00:00

E
E

 1 / 2 mph 44 / 44°F 92% 1012 mb
Low level cloud: 59%
Mid level cloud: 17%
High level cloud: 63%
Most Significant Cloud Type: low
72%
0.0 In
06:00

SE
SE

 13 / 27 mph 51 / 47°F 95% 1004 mb
Low level cloud: 95%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
98%
0.0 In
12:00

E
E

 5 / 10 mph 61 / 61°F 73% 1009 mb
Low level cloud: 14%
Mid level cloud: 28%
High level cloud: 99%
Most Significant Cloud Type: low
36%
0.1 In
18:00

SSE
SSE

 16 / 34 mph 58 / 54°F 93% 1007 mb
Low level cloud: 82%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
90%
0.1 In
Sun 02
Jun		00:00

ENE
ENE

 4 / 7 mph 49 / 48°F 98% 1009 mb
Low level cloud: 83%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.4 In
06:00

SE
SE

 9 / 20 mph 50 / 46°F 94% 1013 mb
Low level cloud: 93%
Mid level cloud: 7%
High level cloud: 1%
Most Significant Cloud Type: low
95%
0.0 In
12:00

NNE
NNE

 9 / 18 mph 49 / 46°F 94% 1012 mb
Low level cloud: 85%
Mid level cloud: 100%
High level cloud: 90%
Most Significant Cloud Type: low
100%
0.7 In
18:00

SSE
SSE

 9 / 20 mph 58 / 56°F 79% 1015 mb
Low level cloud: 11%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.1 In
Mon 03
Jun		00:00

NNW
NNW

 6 / 13 mph 44 / 40°F 96% 1014 mb
Low level cloud: 76%
Mid level cloud: 54%
High level cloud: 10%
Most Significant Cloud Type: low
95%
0.0 In
06:00

E
E

 3 / 6 mph 54 / 54°F 89% 1016 mb
Low level cloud: 29%
Mid level cloud: 20%
High level cloud: 69%
Most Significant Cloud Type: low
44%
0.0 In
12:00

WSW
WSW

 13 / 27 mph 58 / 56°F 74% 1012 mb
Low level cloud: 54%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
65%
0.0 In
18:00

S
S

 9 / 19 mph 58 / 56°F 89% 1015 mb
Low level cloud: 50%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
76%
0.2 In
Tue 04
Jun		00:00

SSE
SSE

 8 / 17 mph 50 / 47°F 99% 1007 mb
Low level cloud: 98%
Mid level cloud: 87%
High level cloud: 64%
Most Significant Cloud Type: low
100%
0.1 In
06:00

SSE
SSE

 3 / 7 mph 52 / 52°F 95% 1015 mb
Low level cloud: 59%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
68%
0.0 In
12:00

W
W

 19 / 40 mph 54 / 49°F 73% 1009 mb
Low level cloud: 51%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
59%
0.1 In
18:00

SW
SW

 10 / 22 mph 58 / 56°F 82% 1015 mb
Low level cloud: 17%
Mid level cloud: 10%
High level cloud: 12%
Most Significant Cloud Type: low
22%
0.1 In
Wed 05
Jun		00:00

W
W

 11 / 24 mph 47 / 42°F 91% 1010 mb
Low level cloud: 79%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
94%
0.1 In
06:00

SSE
SSE

 8 / 17 mph 51 / 48°F 98% 1014 mb
Low level cloud: 96%
Mid level cloud: 72%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

W
W

 10 / 22 mph 56 / 53°F 80% 1010 mb
Low level cloud: 72%
Mid level cloud: 31%
High level cloud: 2%
Most Significant Cloud Type: low
82%
0.1 In
18:00

SSW
SSW

 10 / 21 mph 57 / 55°F 97% 1013 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 76%
Most Significant Cloud Type: low
100%
0.3 In
Thu 06
Jun		00:00

NW
NW

 6 / 12 mph 44 / 40°F 94% 1015 mb
Low level cloud: 6%
Mid level cloud: 12%
High level cloud: 1%
Most Significant Cloud Type: low
10%
0.1 In
06:00

SE
SE

 4 / 7 mph 54 / 54°F 97% 1015 mb
Low level cloud: 97%
Mid level cloud: 84%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NE
NE

 5 / 10 mph 62 / 62°F 64% 1018 mb
Low level cloud: 84%
Mid level cloud: 3%
High level cloud: 31%
Most Significant Cloud Type: low
88%
0.0 In
18:00

WSW
WSW

 4 / 7 mph 62 / 62°F 84% 1015 mb
Low level cloud: 73%
Mid level cloud: 87%
High level cloud: 51%
Most Significant Cloud Type: low
100%
0.0 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