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Merthyr Cynog 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Merthyr Cynog

Powys, United Kingdom

Long range weather outlook for Merthyr Cynog includes 14 day forecast summary:

The forecast for Merthyr Cynog in the coming two weeks is predicting the average daytime maximum temperature will be around 16°C, with a high for the two weeks of 19°C expected on the afternoon of Sunday 19th. The mean minimum temperature will be 8°C, dipping to its lowest on the morning of Saturday 25th at 6°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. The indicators are that Monday 27th will have the most precipitation with an accumulation of around 15.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 18
May		15:00

NE
NE

 9 / 15 mph 66 / 64°F 78% 1014 mb
Low level cloud: 53%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NE
NE

 8 / 13 mph 64 / 62°F 88% 1014 mb
Low level cloud: 36%
Mid level cloud: 26%
High level cloud: 10%
Most Significant Cloud Type: low
45%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NE
NE

 6 / 13 mph 55 / 51°F 94% 1015 mb
Low level cloud: 3%
Mid level cloud: 15%
High level cloud: 2%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May		00:00

NE
NE

 6 / 13 mph 51 / 49°F 96% 1015 mb
Low level cloud: 3%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

 6 / 13 mph 47 / 44°F 92% 1015 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

NE
NE

 5 / 10 mph 48 / 45°F 87% 1016 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
09:00

NE
NE

 10 / 11 mph 59 / 56°F 69% 1016 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
12:00

ENE
ENE

 13 / 15 mph 64 / 63°F 68% 1016 mb
Low level cloud: 1%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 11 / 12 mph 67 / 65°F 66% 1015 mb
Low level cloud: 60%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 10 / 13 mph 63 / 62°F 76% 1015 mb
Low level cloud: 0%
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
21:00

ENE
ENE

 6 / 13 mph 53 / 50°F 90% 1016 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		00:00

ENE
ENE

 6 / 11 mph 49 / 46°F 95% 1016 mb
Low level cloud: 4%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

 6 / 12 mph 46 / 43°F 93% 1016 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

NE
NE

 5 / 10 mph 47 / 43°F 88% 1016 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
09:00

ENE
ENE

 9 / 10 mph 57 / 54°F 68% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

 12 / 13 mph 62 / 61°F 66% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: high
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 11 / 13 mph 64 / 62°F 68% 1013 mb
Low level cloud: 42%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 9 / 10 mph 60 / 57°F 83% 1012 mb
Low level cloud: 13%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 5 / 10 mph 51 / 48°F 93% 1013 mb
Low level cloud: 26%
Mid level cloud: 3%
High level cloud: 13%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May		00:00

NE
NE

 5 / 9 mph 53 / 51°F 90% 1012 mb
Low level cloud: 48%
Mid level cloud: 20%
High level cloud: 8%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

 5 / 9 mph 48 / 46°F 95% 1011 mb
Low level cloud: 34%
Mid level cloud: 23%
High level cloud: 5%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 4 / 7 mph 49 / 47°F 85% 1011 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

 5 / 6 mph 57 / 55°F 63% 1010 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 32%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

 4 / 5 mph 62 / 60°F 58% 1010 mb
Low level cloud: 0%
Mid level cloud: 28%
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

NE
NE

 1 / 2 mph 65 / 62°F 60% 1009 mb
Low level cloud: 4%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: medium
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 3 / 3 mph 63 / 60°F 79% 1009 mb
Low level cloud: 16%
Mid level cloud: 21%
High level cloud: 100%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 3 / 6 mph 52 / 50°F 93% 1010 mb
Low level cloud: 4%
Mid level cloud: 21%
High level cloud: 100%
Most Significant Cloud Type: medium
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		00:00

WNW
WNW

 2 / 5 mph 47 / 47°F 91% 1010 mb
Low level cloud: 2%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 3 / 7 mph 45 / 44°F 85% 1010 mb
Low level cloud: 3%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 3 / 6 mph 49 / 48°F 81% 1010 mb
Low level cloud: 1%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: medium
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 4 / 5 mph 56 / 54°F 76% 1009 mb
Low level cloud: 1%
Mid level cloud: 63%
High level cloud: 100%
Most Significant Cloud Type: medium
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 12 / 13 mph 58 / 55°F 72% 1009 mb
Low level cloud: 0%
Mid level cloud: 68%
High level cloud: 100%
Most Significant Cloud Type: medium
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 11 / 12 mph 56 / 52°F 79% 1008 mb
Low level cloud: 10%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: medium
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 9 / 12 mph 52 / 49°F 96% 1008 mb
Low level cloud: 82%
Mid level cloud: 75%
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

 14 / 19 mph 51 / 46°F 98% 1008 mb
Low level cloud: 97%
Mid level cloud: 68%
High level cloud: 0%
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

WNW
WNW

 13 / 18 mph 51 / 46°F 98% 1007 mb
Low level cloud: 98%
Mid level cloud: 66%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

W
W

 10 / 14 mph 50 / 46°F 98% 1007 mb
Low level cloud: 98%
Mid level cloud: 54%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 7 / 9 mph 51 / 48°F 99% 1007 mb
Low level cloud: 96%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 5 / 6 mph 52 / 50°F 97% 1008 mb
Low level cloud: 91%
Mid level cloud: 59%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 7 / 9 mph 53 / 51°F 93% 1009 mb
Low level cloud: 96%
Mid level cloud: 81%
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

SSW
SSW

 13 / 15 mph 58 / 55°F 81% 1010 mb
Low level cloud: 71%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

 8 / 9 mph 57 / 54°F 82% 1012 mb
Low level cloud: 83%
Mid level cloud: 21%
High level cloud: 6%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 4 / 7 mph 50 / 49°F 92% 1014 mb
Low level cloud: 76%
Mid level cloud: 13%
High level cloud: 5%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 24
May		00:00

SSW
SSW

 3 / 5 mph 49 / 49°F 92% 1015 mb
Low level cloud: 13%
Mid level cloud: 15%
High level cloud: 21%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 0 / 1 mph 44 / 44°F 93% 1015 mb
Low level cloud: 29%
Mid level cloud: 22%
High level cloud: 3%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 2 / 2 mph 49 / 49°F 86% 1016 mb
Low level cloud: 86%
Mid level cloud: 45%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

 1 / 1 mph 55 / 54°F 83% 1016 mb
Low level cloud: 74%
Mid level cloud: 28%
High level cloud: 3%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 5 / 6 mph 61 / 59°F 74% 1016 mb
Low level cloud: 72%
Mid level cloud: 19%
High level cloud: 3%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 9 / 11 mph 58 / 56°F 79% 1016 mb
Low level cloud: 73%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 6 / 7 mph 58 / 55°F 85% 1017 mb
Low level cloud: 35%
Mid level cloud: 7%
High level cloud: 33%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 3 / 5 mph 47 / 46°F 96% 1018 mb
Low level cloud: 32%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 25
May		00:00

ENE
ENE

 9 / 18 mph 52 / 49°F 96% 1020 mb
Low level cloud: 90%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
89%
0.0 In
06:00

SW
SW

 3 / 6 mph 51 / 51°F 85% 1025 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 3%
Most Significant Cloud Type: medium
4%
0.0 In
12:00

SW
SW

 11 / 23 mph 54 / 51°F 72% 1021 mb
Low level cloud: 62%
Mid level cloud: 30%
High level cloud: 3%
Most Significant Cloud Type: low
73%
0.0 In
18:00

SSW
SSW

 8 / 17 mph 61 / 61°F 77% 1018 mb
Low level cloud: 9%
Mid level cloud: 6%
High level cloud: 99%
Most Significant Cloud Type: medium
34%
0.0 In
Sun 26
May		00:00

E
E

 5 / 11 mph 52 / 50°F 94% 1013 mb
Low level cloud: 96%
Mid level cloud: 79%
High level cloud: 68%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SSE
SSE

 8 / 17 mph 51 / 48°F 90% 1018 mb
Low level cloud: 62%
Mid level cloud: 76%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

WSW
WSW

 11 / 23 mph 56 / 54°F 77% 1007 mb
Low level cloud: 69%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: low
95%
0.0 In
18:00

E
E

 10 / 21 mph 56 / 54°F 96% 1011 mb
Low level cloud: 63%
Mid level cloud: 71%
High level cloud: 100%
Most Significant Cloud Type: low
99%
0.0 In
Mon 27
May		00:00

W
W

 5 / 10 mph 46 / 44°F 96% 1009 mb
Low level cloud: 97%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

N
N

 1 / 2 mph 54 / 54°F 92% 1011 mb
Low level cloud: 18%
Mid level cloud: 28%
High level cloud: 100%
Most Significant Cloud Type: low
39%
0.2 In
12:00

WNW
WNW

 13 / 27 mph 53 / 49°F 96% 1011 mb
Low level cloud: 88%
Mid level cloud: 82%
High level cloud: 4%
Most Significant Cloud Type: low
100%
0.0 In
18:00

ENE
ENE

 1 / 2 mph 56 / 56°F 92% 1009 mb
Low level cloud: 25%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.4 In
Tue 28
May		00:00

W
W

 10 / 21 mph 48 / 44°F 97% 1011 mb
Low level cloud: 96%
Mid level cloud: 76%
High level cloud: 47%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NW
NW

 2 / 4 mph 52 / 53°F 97% 1010 mb
Low level cloud: 87%
Mid level cloud: 83%
High level cloud: 36%
Most Significant Cloud Type: low
100%
0.1 In
12:00

NW
NW

 10 / 22 mph 58 / 56°F 77% 1013 mb
Low level cloud: 57%
Mid level cloud: 45%
High level cloud: 1%
Most Significant Cloud Type: low
73%
0.1 In
18:00

W
W

 7 / 15 mph 55 / 53°F 92% 1010 mb
Low level cloud: 65%
Mid level cloud: 31%
High level cloud: 35%
Most Significant Cloud Type: low
79%
0.4 In
Wed 29
May		00:00

SSW
SSW

 3 / 6 mph 47 / 47°F 97% 1015 mb
Low level cloud: 40%
Mid level cloud: 21%
High level cloud: 79%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SW
SW

 3 / 7 mph 52 / 51°F 98% 1012 mb
Low level cloud: 97%
Mid level cloud: 83%
High level cloud: 28%
Most Significant Cloud Type: low
100%
0.0 In
12:00

S
S

 8 / 16 mph 53 / 50°F 97% 1009 mb
Low level cloud: 100%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.3 In
18:00

SSW
SSW

 7 / 15 mph 55 / 53°F 97% 1011 mb
Low level cloud: 92%
Mid level cloud: 44%
High level cloud: 5%
Most Significant Cloud Type: low
100%
0.1 In
Thu 30
May		00:00

SW
SW

 10 / 21 mph 49 / 45°F 97% 1007 mb
Low level cloud: 75%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
78%
0.2 In
06:00

S
S

 3 / 6 mph 52 / 51°F 95% 1011 mb
Low level cloud: 40%
Mid level cloud: 19%
High level cloud: 100%
Most Significant Cloud Type: low
58%
0.0 In
12:00

WSW
WSW

 19 / 40 mph 53 / 48°F 83% 1007 mb
Low level cloud: 48%
Mid level cloud: 18%
High level cloud: 12%
Most Significant Cloud Type: low
55%
0.1 In
18:00

SSE
SSE

 4 / 9 mph 55 / 55°F 94% 1006 mb
Low level cloud: 31%
Mid level cloud: 64%
High level cloud: 0%
Most Significant Cloud Type: low
53%
0.1 In
Fri 31
May		00:00

WSW
WSW

 11 / 22 mph 49 / 44°F 93% 1011 mb
Low level cloud: 97%
Mid level cloud: 24%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
06:00

SE
SE

 5 / 10 mph 52 / 51°F 92% 1002 mb
Low level cloud: 81%
Mid level cloud: 44%
High level cloud: 64%
Most Significant Cloud Type: low
100%
0.1 In
12:00

SW
SW

 14 / 30 mph 57 / 54°F 77% 1012 mb
Low level cloud: 70%
Mid level cloud: 99%
High level cloud: 20%
Most Significant Cloud Type: low
100%
0.0 In
18:00

SSW
SSW

 9 / 19 mph 54 / 52°F 91% 1002 mb
Low level cloud: 80%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
Sat 01
Jun		00:00

SE
SE

 6 / 13 mph 49 / 47°F 98% 1010 mb
Low level cloud: 99%
Mid level cloud: 97%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.2 In
06:00

SSE
SSE

 6 / 13 mph 51 / 48°F 90% 1003 mb
Low level cloud: 64%
Mid level cloud: 21%
High level cloud: 32%
Most Significant Cloud Type: low
75%
0.0 In
12:00

SSE
SSE

 15 / 32 mph 63 / 63°F 72% 1006 mb
Low level cloud: 1%
Mid level cloud: 24%
High level cloud: 100%
Most Significant Cloud Type: medium
29%
0.1 In
18:00

SSW
SSW

 6 / 13 mph 52 / 50°F 94% 1005 mb
Low level cloud: 48%
Mid level cloud: 45%
High level cloud: 40%
Most Significant Cloud Type: low
68%
0.2 In
Sun 02
Jun		00:00

SSW
SSW

 22 / 47 mph 54 / 48°F 90% 1001 mb
Low level cloud: 98%
Mid level cloud: 3%
High level cloud: 4%
Most Significant Cloud Type: low
99%
0.0 In
06:00

SSE
SSE

 3 / 6 mph 53 / 54°F 95% 1007 mb
Low level cloud: 90%
Mid level cloud: 44%
High level cloud: 98%
Most Significant Cloud Type: low
100%
0.2 In
12:00

SW
SW

 19 / 41 mph 58 / 55°F 72% 1012 mb
Low level cloud: 79%
Mid level cloud: 6%
High level cloud: 7%
Most Significant Cloud Type: low
82%
0.0 In
18:00

WNW
WNW

 7 / 15 mph 57 / 55°F 87% 1010 mb
Low level cloud: 22%
Mid level cloud: 79%
High level cloud: 41%
Most Significant Cloud Type: medium
100%
0.1 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