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Thenford 14 Day Long Range Forecast

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

Northamptonshire, United Kingdom

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

Reviewing the forecast for Thenford Over the next 14 days and 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 average minimum temperature will be 8°C, dipping to its lowest on the morning of Tuesday 21st at 5°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. Predictions are Sunday 26th will have the most precipitation with an accumulation of around 7.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 19
May
12:00

NE
NE

12 / 14 mph 66 / 65°F 69% 1015 mb
Low level cloud: 4%
Mid level cloud: 3%
High level cloud: 1%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

12 / 15 mph 66 / 65°F 67% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 2%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

11 / 14 mph 64 / 63°F 80% 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
21:00

NE
NE

8 / 13 mph 54 / 50°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
Mon 20
May
00:00

NE
NE

8 / 14 mph 48 / 45°F 92% 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
03:00

NNE
NNE

7 / 15 mph 43 / 39°F 96% 1016 mb
Low level cloud: 5%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

10 / 14 mph 46 / 40°F 96% 1016 mb
Low level cloud: 83%
Mid level cloud: 1%
High level cloud: 4%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

11 / 13 mph 52 / 48°F 87% 1016 mb
Low level cloud: 95%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

11 / 12 mph 57 / 54°F 82% 1015 mb
Low level cloud: 98%
Mid level cloud: 6%
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

NE
NE

9 / 13 mph 60 / 60°F 78% 1013 mb
Low level cloud: 86%
Mid level cloud: 11%
High level cloud: 9%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

10 / 13 mph 59 / 56°F 83% 1012 mb
Low level cloud: 13%
Mid level cloud: 19%
High level cloud: 32%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

8 / 15 mph 48 / 44°F 93% 1013 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 6%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
00:00

NE
NE

7 / 14 mph 43 / 39°F 91% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 10%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

6 / 14 mph 41 / 37°F 93% 1011 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 18%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

5 / 9 mph 45 / 42°F 88% 1010 mb
Low level cloud: 27%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

7 / 10 mph 48 / 45°F 96% 1010 mb
Low level cloud: 65%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

NNW
NNW

8 / 10 mph 52 / 49°F 92% 1009 mb
Low level cloud: 96%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

8 / 9 mph 54 / 51°F 89% 1009 mb
Low level cloud: 92%
Mid level cloud: 46%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

7 / 9 mph 53 / 50°F 90% 1009 mb
Low level cloud: 86%
Mid level cloud: 47%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

5 / 7 mph 50 / 49°F 95% 1009 mb
Low level cloud: 80%
Mid level cloud: 73%
High level cloud: 61%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May
00:00

W
W

5 / 8 mph 50 / 48°F 94% 1009 mb
Low level cloud: 30%
Mid level cloud: 32%
High level cloud: 64%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

5 / 9 mph 49 / 47°F 93% 1008 mb
Low level cloud: 19%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

5 / 9 mph 53 / 49°F 94% 1009 mb
Low level cloud: 39%
Mid level cloud: 85%
High level cloud: 0%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

10 / 12 mph 58 / 55°F 83% 1009 mb
Low level cloud: 46%
Mid level cloud: 37%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

13 / 15 mph 60 / 59°F 82% 1009 mb
Low level cloud: 80%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

11 / 15 mph 64 / 62°F 82% 1009 mb
Low level cloud: 51%
Mid level cloud: 26%
High level cloud: 8%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

11 / 16 mph 61 / 59°F 88% 1011 mb
Low level cloud: 21%
Mid level cloud: 17%
High level cloud: 4%
Most Significant Cloud Type: low
27%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

WNW
WNW

7 / 15 mph 53 / 49°F 94% 1013 mb
Low level cloud: 23%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May
00:00

WNW
WNW

5 / 11 mph 48 / 45°F 96% 1014 mb
Low level cloud: 56%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

4 / 8 mph 46 / 45°F 96% 1015 mb
Low level cloud: 26%
Mid level cloud: 11%
High level cloud: 16%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

5 / 8 mph 52 / 48°F 95% 1017 mb
Low level cloud: 43%
Mid level cloud: 7%
High level cloud: 33%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

9 / 10 mph 55 / 52°F 87% 1018 mb
Low level cloud: 100%
Mid level cloud: 8%
High level cloud: 50%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

8 / 9 mph 58 / 56°F 78% 1019 mb
Low level cloud: 94%
Mid level cloud: 46%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

7 / 9 mph 60 / 59°F 77% 1019 mb
Low level cloud: 88%
Mid level cloud: 17%
High level cloud: 34%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

9 / 12 mph 59 / 56°F 88% 1020 mb
Low level cloud: 31%
Mid level cloud: 8%
High level cloud: 32%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

8 / 14 mph 49 / 45°F 97% 1022 mb
Low level cloud: 44%
Mid level cloud: 11%
High level cloud: 21%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 24
May
00:00

ENE
ENE

7 / 13 mph 45 / 41°F 98% 1022 mb
Low level cloud: 53%
Mid level cloud: 12%
High level cloud: 18%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

6 / 13 mph 43 / 39°F 98% 1022 mb
Low level cloud: 59%
Mid level cloud: 10%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

6 / 9 mph 48 / 44°F 96% 1023 mb
Low level cloud: 65%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

7 / 9 mph 56 / 52°F 85% 1023 mb
Low level cloud: 55%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

8 / 9 mph 60 / 60°F 78% 1022 mb
Low level cloud: 96%
Mid level cloud: 13%
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

SSE
SSE

8 / 10 mph 64 / 63°F 74% 1021 mb
Low level cloud: 82%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

7 / 10 mph 63 / 60°F 89% 1021 mb
Low level cloud: 55%
Mid level cloud: 24%
High level cloud: 4%
Most Significant Cloud Type: low
64%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

SSE
SSE

6 / 12 mph 54 / 51°F 93% 1022 mb
Low level cloud: 85%
Mid level cloud: 15%
High level cloud: 13%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 25
May
00:00

SE
SE

7 / 12 mph 52 / 49°F 96% 1022 mb
Low level cloud: 36%
Mid level cloud: 9%
High level cloud: 93%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SE
SE

6 / 13 mph 46 / 43°F 96% 1021 mb
Low level cloud: 12%
Mid level cloud: 10%
High level cloud: 20%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

7 / 11 mph 50 / 46°F 94% 1020 mb
Low level cloud: 10%
Mid level cloud: 27%
High level cloud: 20%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

13 / 15 mph 60 / 60°F 85% 1018 mb
Low level cloud: 83%
Mid level cloud: 22%
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

SSE
SSE

14 / 18 mph 65 / 64°F 83% 1017 mb
Low level cloud: 39%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

15 / 20 mph 65 / 63°F 87% 1014 mb
Low level cloud: 23%
Mid level cloud: 50%
High level cloud: 100%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

12 / 17 mph 60 / 56°F 90% 1014 mb
Low level cloud: 22%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

6 / 9 mph 56 / 52°F 96% 1013 mb
Low level cloud: 28%
Mid level cloud: 64%
High level cloud: 32%
Most Significant Cloud Type: low
54%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 26
May
00:00

E
E

5 / 10 mph 56 / 55°F 96% 1015 mb
Low level cloud: 30%
Mid level cloud: 65%
High level cloud: 76%
Most Significant Cloud Type: low
61%
0.0 In
06:00

SE
SE

6 / 13 mph 51 / 49°F 89% 1020 mb
Low level cloud: 65%
Mid level cloud: 91%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SSW
SSW

10 / 22 mph 62 / 62°F 69% 1006 mb
Low level cloud: 37%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: low
51%
0.0 In
18:00

ESE
ESE

8 / 16 mph 65 / 65°F 91% 1012 mb
Low level cloud: 19%
Mid level cloud: 67%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Mon 27
May
00:00

SW
SW

7 / 15 mph 51 / 48°F 96% 1016 mb
Low level cloud: 7%
Mid level cloud: 7%
High level cloud: 5%
Most Significant Cloud Type: low
9%
0.0 In
06:00

NE
NE

10 / 21 mph 53 / 50°F 97% 1019 mb
Low level cloud: 87%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
91%
0.0 In
12:00

NNE
NNE

11 / 21 mph 59 / 57°F 85% 1017 mb
Low level cloud: 93%
Mid level cloud: 9%
High level cloud: 91%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NW
NW

8 / 17 mph 60 / 60°F 87% 1016 mb
Low level cloud: 18%
Mid level cloud: 46%
High level cloud: 28%
Most Significant Cloud Type: low
36%
0.0 In
Tue 28
May
00:00

NNE
NNE

9 / 19 mph 50 / 46°F 90% 1020 mb
Low level cloud: 8%
Mid level cloud: 43%
High level cloud: 24%
Most Significant Cloud Type: medium
66%
0.1 In
06:00

NNW
NNW

6 / 13 mph 50 / 48°F 97% 1018 mb
Low level cloud: 79%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
94%
0.0 In
12:00

NNE
NNE

19 / 40 mph 61 / 62°F 67% 1019 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 7%
Most Significant Cloud Type: medium
46%
0.0 In
18:00

NNE
NNE

6 / 12 mph 63 / 63°F 85% 1017 mb
Low level cloud: 6%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
37%
0.2 In
Wed 29
May
00:00

NNE
NNE

13 / 28 mph 49 / 44°F 91% 1018 mb
Low level cloud: 15%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
17%
0.0 In
06:00

NE
NE

6 / 13 mph 52 / 50°F 96% 1017 mb
Low level cloud: 45%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
49%
0.0 In
12:00

NNE
NNE

16 / 33 mph 63 / 63°F 75% 1016 mb
Low level cloud: 98%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

E
E

6 / 13 mph 59 / 59°F 90% 1015 mb
Low level cloud: 84%
Mid level cloud: 31%
High level cloud: 2%
Most Significant Cloud Type: low
94%
0.0 In
Thu 30
May
00:00

NNE
NNE

12 / 25 mph 52 / 48°F 91% 1017 mb
Low level cloud: 100%
Mid level cloud: 29%
High level cloud: 21%
Most Significant Cloud Type: low
100%
0.0 In
06:00

ENE
ENE

6 / 12 mph 56 / 55°F 94% 1014 mb
Low level cloud: 18%
Mid level cloud: 5%
High level cloud: 7%
Most Significant Cloud Type: low
20%
0.0 In
12:00

NNE
NNE

10 / 21 mph 55 / 52°F 94% 1016 mb
Low level cloud: 93%
Mid level cloud: 15%
High level cloud: 15%
Most Significant Cloud Type: low
99%
0.0 In
18:00

E
E

12 / 24 mph 64 / 64°F 90% 1010 mb
Low level cloud: 11%
Mid level cloud: 7%
High level cloud: 14%
Most Significant Cloud Type: low
14%
0.2 In
Fri 31
May
00:00

NNE
NNE

7 / 15 mph 55 / 53°F 93% 1016 mb
Low level cloud: 95%
Mid level cloud: 14%
High level cloud: 12%
Most Significant Cloud Type: low
100%
0.0 In
06:00

ENE
ENE

9 / 18 mph 57 / 55°F 99% 1008 mb
Low level cloud: 94%
Mid level cloud: 51%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
12:00

N
N

7 / 14 mph 58 / 58°F 92% 1015 mb
Low level cloud: 97%
Mid level cloud: 50%
High level cloud: 20%
Most Significant Cloud Type: low
100%
0.0 In
18:00

SW
SW

4 / 9 mph 63 / 63°F 90% 1009 mb
Low level cloud: 29%
Mid level cloud: 22%
High level cloud: 100%
Most Significant Cloud Type: low
48%
0.3 In
Sat 01
Jun
00:00

NNW
NNW

2 / 3 mph 60 / 60°F 98% 1012 mb
Low level cloud: 98%
Mid level cloud: 79%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SW
SW

3 / 6 mph 56 / 57°F 86% 1011 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 5%
Most Significant Cloud Type: medium
25%
0.0 In
12:00

NW
NW

3 / 6 mph 63 / 63°F 90% 1009 mb
Low level cloud: 82%
Mid level cloud: 46%
High level cloud: 5%
Most Significant Cloud Type: low
98%
0.2 In
18:00

S
S

6 / 14 mph 61 / 61°F 93% 1011 mb
Low level cloud: 34%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
61%
0.3 In
Sun 02
Jun
00:00

WSW
WSW

4 / 7 mph 57 / 57°F 96% 1009 mb
Low level cloud: 35%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
39%
0.1 In
06:00

ENE
ENE

8 / 16 mph 55 / 52°F 97% 1009 mb
Low level cloud: 99%
Mid level cloud: 93%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.2 In
12:00

SW
SW

6 / 14 mph 68 / 68°F 70% 1011 mb
Low level cloud: 52%
Mid level cloud: 3%
High level cloud: 7%
Most Significant Cloud Type: low
54%
0.0 In
18:00

SSW
SSW

10 / 21 mph 60 / 60°F 84% 1010 mb
Low level cloud: 6%
Mid level cloud: 9%
High level cloud: 15%
Most Significant Cloud Type: low
10%
0.1 In
Mon 03
Jun
00:00

ENE
ENE

2 / 5 mph 63 / 63°F 89% 1013 mb
Low level cloud: 14%
Mid level cloud: 9%
High level cloud: 16%
Most Significant Cloud Type: low
19%
0.0 In
06:00

SSE
SSE

9 / 19 mph 53 / 50°F 97% 1011 mb
Low level cloud: 73%
Mid level cloud: 32%
High level cloud: 6%
Most Significant Cloud Type: low
84%
0.1 In
12:00

E
E

17 / 36 mph 68 / 68°F 75% 1010 mb
Low level cloud: 57%
Mid level cloud: 16%
High level cloud: 33%
Most Significant Cloud Type: low
67%
0.0 In
18:00

S
S

11 / 22 mph 60 / 60°F 81% 1012 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
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