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Thornhill 14 Day Long Range Forecast

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

City of Southampton, United Kingdom

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

Taking a look at Thornhill over the coming two weeks and the average daytime maximum temperature will be around 18°C, with a high for the two weeks of 22°C expected on the evening of Tuesday 4th. The average minimum temperature will be 11°C, dipping to its lowest on the morning of Saturday 1st at 8°C. The coming 14 days will have some days seeing a little precipitation and some days with rain. The current forecast indicates Tuesday 28th will have the most precipitation with an accumulation of around 4.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 28
May		15:00

SW
SW

 16 / 19 mph 61 / 61°F 96% 1012 mb
Low level cloud: 100%
Mid level cloud: 43%
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

SW
SW

 17 / 19 mph 60 / 60°F 97% 1011 mb
Low level cloud: 97%
Mid level cloud: 46%
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

SW
SW

 13 / 17 mph 59 / 55°F 95% 1011 mb
Low level cloud: 66%
Mid level cloud: 43%
High level cloud: 4%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 29
May		00:00

WSW
WSW

 15 / 23 mph 56 / 53°F 91% 1010 mb
Low level cloud: 75%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 14 / 22 mph 53 / 49°F 93% 1010 mb
Low level cloud: 30%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 11 / 14 mph 55 / 50°F 92% 1010 mb
Low level cloud: 33%
Mid level cloud: 9%
High level cloud: 4%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 12 / 14 mph 62 / 61°F 71% 1011 mb
Low level cloud: 5%
Mid level cloud: 8%
High level cloud: 4%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 13 / 16 mph 63 / 62°F 70% 1010 mb
Low level cloud: 79%
Mid level cloud: 20%
High level cloud: 3%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 13 / 17 mph 63 / 62°F 74% 1009 mb
Low level cloud: 25%
Mid level cloud: 20%
High level cloud: 1%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 13 / 17 mph 61 / 60°F 80% 1009 mb
Low level cloud: 5%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 9 / 16 mph 54 / 49°F 93% 1010 mb
Low level cloud: 15%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 30
May		00:00

WNW
WNW

 8 / 15 mph 50 / 47°F 95% 1010 mb
Low level cloud: 17%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 6 / 13 mph 49 / 46°F 94% 1009 mb
Low level cloud: 11%
Mid level cloud: 35%
High level cloud: 97%
Most Significant Cloud Type: medium
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 9 / 13 mph 53 / 50°F 89% 1009 mb
Low level cloud: 28%
Mid level cloud: 90%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 14 / 17 mph 58 / 54°F 78% 1010 mb
Low level cloud: 47%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

 15 / 19 mph 62 / 60°F 73% 1011 mb
Low level cloud: 65%
Mid level cloud: 14%
High level cloud: 4%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 13 / 16 mph 63 / 62°F 71% 1012 mb
Low level cloud: 57%
Mid level cloud: 34%
High level cloud: 0%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 6 / 9 mph 63 / 60°F 84% 1014 mb
Low level cloud: 21%
Mid level cloud: 40%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 6 / 12 mph 55 / 51°F 91% 1016 mb
Low level cloud: 36%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 31
May		00:00

NNW
NNW

 6 / 13 mph 50 / 47°F 95% 1017 mb
Low level cloud: 67%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 9 / 14 mph 51 / 48°F 96% 1018 mb
Low level cloud: 49%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

 9 / 12 mph 53 / 49°F 94% 1019 mb
Low level cloud: 45%
Mid level cloud: 46%
High level cloud: 8%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 12 / 13 mph 57 / 54°F 83% 1020 mb
Low level cloud: 72%
Mid level cloud: 24%
High level cloud: 5%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

 12 / 14 mph 61 / 60°F 74% 1020 mb
Low level cloud: 59%
Mid level cloud: 14%
High level cloud: 5%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 12 / 14 mph 62 / 61°F 72% 1020 mb
Low level cloud: 50%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 9 / 12 mph 59 / 56°F 86% 1020 mb
Low level cloud: 29%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 7 / 11 mph 54 / 52°F 89% 1022 mb
Low level cloud: 13%
Mid level cloud: 66%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 01
Jun		00:00

N
N

 7 / 11 mph 52 / 50°F 91% 1022 mb
Low level cloud: 6%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 8 / 15 mph 47 / 43°F 91% 1023 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 11 / 15 mph 50 / 45°F 85% 1024 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 15 / 17 mph 58 / 54°F 71% 1024 mb
Low level cloud: 34%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 13 / 15 mph 61 / 61°F 67% 1025 mb
Low level cloud: 96%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 11 / 13 mph 63 / 62°F 69% 1025 mb
Low level cloud: 37%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 9 / 11 mph 62 / 60°F 77% 1026 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 6 / 13 mph 54 / 50°F 90% 1027 mb
Low level cloud: 3%
Mid level cloud: 19%
High level cloud: 3%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 02
Jun		00:00

N
N

 5 / 10 mph 50 / 48°F 92% 1028 mb
Low level cloud: 51%
Mid level cloud: 0%
High level cloud: 51%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 6 / 11 mph 48 / 46°F 94% 1027 mb
Low level cloud: 22%
Mid level cloud: 7%
High level cloud: 5%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 9 / 12 mph 51 / 47°F 85% 1028 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

NNE
NNE

 13 / 15 mph 60 / 59°F 65% 1028 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 32%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 11 / 13 mph 66 / 65°F 63% 1027 mb
Low level cloud: 42%
Mid level cloud: 1%
High level cloud: 1%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 9 / 11 mph 67 / 65°F 70% 1027 mb
Low level cloud: 52%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 7 / 11 mph 66 / 64°F 72% 1027 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 20%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 6 / 11 mph 58 / 56°F 86% 1028 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 19%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 03
Jun		00:00

NNE
NNE

 4 / 9 mph 53 / 51°F 84% 1028 mb
Low level cloud: 49%
Mid level cloud: 27%
High level cloud: 1%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 5 / 11 mph 50 / 48°F 87% 1027 mb
Low level cloud: 33%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 5 / 8 mph 54 / 53°F 84% 1027 mb
Low level cloud: 94%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 9 / 11 mph 62 / 60°F 79% 1027 mb
Low level cloud: 78%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 13 / 15 mph 66 / 65°F 72% 1027 mb
Low level cloud: 83%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 10 / 13 mph 65 / 65°F 76% 1026 mb
Low level cloud: 93%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

 6 / 8 mph 66 / 64°F 83% 1025 mb
Low level cloud: 76%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 2 / 4 mph 62 / 60°F 88% 1026 mb
Low level cloud: 78%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 04
Jun		00:00

NE
NE

 12 / 26 mph 54 / 51°F 92% 1026 mb
Low level cloud: 66%
Mid level cloud: 6%
High level cloud: 11%
Most Significant Cloud Type: low
69%
0.0 In
06:00

NNE
NNE

 15 / 31 mph 54 / 49°F 92% 1021 mb
Low level cloud: 98%
Mid level cloud: 26%
High level cloud: 15%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NE
NE

 11 / 23 mph 61 / 60°F 78% 1025 mb
Low level cloud: 83%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
85%
0.0 In
18:00

NNE
NNE

 7 / 15 mph 73 / 77°F 78% 1026 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 42%
Most Significant Cloud Type: medium
5%
0.0 In
Wed 05
Jun		00:00

N
N

 4 / 9 mph 60 / 60°F 83% 1023 mb
Low level cloud: 25%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.0 In
06:00

N
N

 7 / 15 mph 54 / 52°F 78% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
9%
0.0 In
12:00

N
N

 13 / 26 mph 60 / 60°F 71% 1022 mb
Low level cloud: 84%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
95%
0.0 In
18:00

WNW
WNW

 9 / 18 mph 70 / 70°F 76% 1020 mb
Low level cloud: 3%
Mid level cloud: 4%
High level cloud: 16%
Most Significant Cloud Type: low
6%
0.0 In
Thu 06
Jun		00:00

N
N

 7 / 15 mph 48 / 45°F 83% 1025 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: high
2%
0.0 In
06:00

NNE
NNE

 8 / 15 mph 54 / 51°F 82% 1022 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
0.0 In
12:00

NNW
NNW

 3 / 7 mph 66 / 65°F 53% 1025 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 9%
Most Significant Cloud Type: medium
4%
0.0 In
18:00

NNW
NNW

 3 / 6 mph 67 / 67°F 68% 1020 mb
Low level cloud: 26%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
27%
0.0 In
Fri 07
Jun		00:00

WNW
WNW

 2 / 4 mph 59 / 60°F 82% 1023 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 34%
Most Significant Cloud Type: medium
8%
0.0 In
06:00

W
W

 2 / 4 mph 61 / 61°F 81% 1018 mb
Low level cloud: 4%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
4%
0.0 In
12:00

SW
SW

 4 / 7 mph 69 / 69°F 59% 1021 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
18:00

W
W

 8 / 15 mph 66 / 66°F 74% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: high
9%
0.0 In
Sat 08
Jun		00:00

NNE
NNE

 3 / 6 mph 61 / 61°F 85% 1020 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 93%
Most Significant Cloud Type: medium
18%
0.0 In
06:00

NNE
NNE

 3 / 6 mph 60 / 60°F 81% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 18%
Most Significant Cloud Type: medium
2%
0.0 In
12:00

ESE
ESE

 10 / 21 mph 67 / 67°F 62% 1019 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: medium
51%
0.0 In
18:00

SW
SW

 5 / 9 mph 63 / 63°F 81% 1013 mb
Low level cloud: 6%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
67%
0.0 In
Sun 09
Jun		00:00

ENE
ENE

 13 / 28 mph 58 / 55°F 74% 1018 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 17%
Most Significant Cloud Type: medium
44%
0.0 In
06:00

WSW
WSW

 2 / 4 mph 58 / 58°F 96% 1015 mb
Low level cloud: 71%
Mid level cloud: 74%
High level cloud: 9%
Most Significant Cloud Type: low
97%
0.2 In
12:00

ENE
ENE

 18 / 38 mph 63 / 63°F 81% 1015 mb
Low level cloud: 54%
Mid level cloud: 80%
High level cloud: 17%
Most Significant Cloud Type: low
83%
0.0 In
18:00

SSW
SSW

 6 / 13 mph 61 / 61°F 81% 1015 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 96%
Most Significant Cloud Type: medium
51%
0.0 In
Mon 10
Jun		00:00

NE
NE

 18 / 38 mph 56 / 52°F 97% 1012 mb
Low level cloud: 98%
Mid level cloud: 77%
High level cloud: 99%
Most Significant Cloud Type: low
100%
0.6 In
06:00

E
E

 6 / 12 mph 58 / 58°F 85% 1013 mb
Low level cloud: 72%
Mid level cloud: 74%
High level cloud: 22%
Most Significant Cloud Type: low
100%
0.0 In
12:00

N
N

 12 / 25 mph 53 / 49°F 96% 1010 mb
Low level cloud: 100%
Mid level cloud: 69%
High level cloud: 72%
Most Significant Cloud Type: low
100%
1.0 In
18:00

SW
SW

 3 / 6 mph 67 / 67°F 85% 1009 mb
Low level cloud: 0%
Mid level cloud: 79%
High level cloud: 98%
Most Significant Cloud Type: medium
83%
0.0 In
Tue 11
Jun		00:00

NW
NW

 11 / 24 mph 51 / 46°F 90% 1015 mb
Low level cloud: 82%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
06:00

N
N

 4 / 9 mph 63 / 63°F 94% 1009 mb
Low level cloud: 57%
Mid level cloud: 32%
High level cloud: 38%
Most Significant Cloud Type: low
73%
0.0 In
12:00

NW
NW

 10 / 21 mph 57 / 54°F 72% 1019 mb
Low level cloud: 93%
Mid level cloud: 17%
High level cloud: 9%
Most Significant Cloud Type: low
99%
0.0 In
18:00

N
N

 11 / 22 mph 59 / 56°F 95% 1013 mb
Low level cloud: 83%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
98%
0.1 In
Wed 12
Jun		00:00

NNE
NNE

 10 / 21 mph 53 / 49°F 91% 1021 mb
Low level cloud: 95%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

N
N

 13 / 27 mph 53 / 49°F 81% 1021 mb
Low level cloud: 65%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
72%
0.0 In
12:00

NE
NE

 13 / 28 mph 60 / 60°F 75% 1022 mb
Low level cloud: 83%
Mid level cloud: 46%
High level cloud: 7%
Most Significant Cloud Type: low
99%
0.0 In
18:00

NNE
NNE

 3 / 7 mph 69 / 69°F 69% 1025 mb
Low level cloud: 13%
Mid level cloud: 0%
High level cloud: 10%
Most Significant Cloud Type: low
14%
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