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West Worthing 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for West Worthing

West Sussex, United Kingdom

Long range weather outlook for West Worthing includes 14 day forecast summary:

For West Worthing in the coming two weeks the average daytime maximum temperature will be around 22°C, with a high for the two weeks of 26°C expected on the evening of Thursday 7th. The mean minimum temperature will be 15°C, dipping to its lowest on the morning of Friday 1st at 13°C. The next 14 days will have mixed weather with some days dry and some seeing a little rain. The current forecast indicates Thursday 31st will have the most precipitation with an accumulation of around 7.0mm. On the whole winds are likely to be moderate. Expect the strongest wind on the morning of Tuesday 5th, coming from a westerly direction, and reaching around 26mph.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 29
Jul
15:00

W
W

12 / 13 mph 67 / 67°F 78% 1019 mb
Low level cloud: 83%
Mid level cloud: 43%
High level cloud: 44%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

7 / 8 mph 67 / 67°F 84% 1018 mb
Low level cloud: 70%
Mid level cloud: 53%
High level cloud: 4%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

4 / 5 mph 65 / 65°F 88% 1018 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 30
Jul
00:00

NNW
NNW

5 / 7 mph 63 / 64°F 87% 1018 mb
Low level cloud: 38%
Mid level cloud: 31%
High level cloud: 3%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

9 / 13 mph 60 / 60°F 91% 1018 mb
Low level cloud: 47%
Mid level cloud: 27%
High level cloud: 8%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

10 / 14 mph 61 / 60°F 88% 1019 mb
Low level cloud: 83%
Mid level cloud: 25%
High level cloud: 10%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

7 / 9 mph 69 / 67°F 70% 1019 mb
Low level cloud: 74%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

6 / 7 mph 74 / 76°F 67% 1019 mb
Low level cloud: 37%
Mid level cloud: 37%
High level cloud: 14%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

11 / 13 mph 73 / 76°F 68% 1018 mb
Low level cloud: 36%
Mid level cloud: 46%
High level cloud: 9%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

16 / 20 mph 71 / 69°F 74% 1018 mb
Low level cloud: 0%
Mid level cloud: 38%
High level cloud: 84%
Most Significant Cloud Type: medium
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

16 / 25 mph 68 / 68°F 75% 1018 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 18%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 31
Jul
00:00

NW
NW

12 / 23 mph 61 / 61°F 81% 1018 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

9 / 16 mph 60 / 60°F 78% 1017 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 32%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

6 / 10 mph 63 / 60°F 77% 1017 mb
Low level cloud: 11%
Mid level cloud: 22%
High level cloud: 100%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

8 / 10 mph 71 / 70°F 79% 1017 mb
Low level cloud: 49%
Mid level cloud: 51%
High level cloud: 100%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

14 / 19 mph 69 / 68°F 93% 1016 mb
Low level cloud: 48%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
75%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

WSW
WSW

16 / 22 mph 73 / 76°F 88% 1015 mb
Low level cloud: 32%
Mid level cloud: 33%
High level cloud: 1%
Most Significant Cloud Type: low
43%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

W
W

12 / 17 mph 73 / 76°F 82% 1014 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 2%
Most Significant Cloud Type: low
16%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NNW
NNW

10 / 20 mph 63 / 63°F 85% 1014 mb
Low level cloud: 24%
Mid level cloud: 22%
High level cloud: 15%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 01
Aug
00:00

NNW
NNW

16 / 27 mph 59 / 56°F 80% 1015 mb
Low level cloud: 13%
Mid level cloud: 64%
High level cloud: 5%
Most Significant Cloud Type: medium
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

15 / 22 mph 56 / 53°F 87% 1015 mb
Low level cloud: 6%
Mid level cloud: 8%
High level cloud: 3%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

15 / 21 mph 56 / 52°F 91% 1015 mb
Low level cloud: 41%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

14 / 16 mph 65 / 64°F 77% 1016 mb
Low level cloud: 66%
Mid level cloud: 34%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

13 / 15 mph 69 / 67°F 67% 1016 mb
Low level cloud: 59%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

8 / 10 mph 72 / 69°F 64% 1016 mb
Low level cloud: 10%
Mid level cloud: 29%
High level cloud: 38%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

10 / 14 mph 70 / 68°F 70% 1017 mb
Low level cloud: 19%
Mid level cloud: 45%
High level cloud: 4%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

8 / 11 mph 64 / 64°F 76% 1018 mb
Low level cloud: 6%
Mid level cloud: 32%
High level cloud: 8%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 02
Aug
00:00

NE
NE

10 / 16 mph 59 / 57°F 83% 1019 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 6%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

6 / 11 mph 57 / 56°F 77% 1019 mb
Low level cloud: 4%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

6 / 10 mph 59 / 56°F 73% 1020 mb
Low level cloud: 9%
Mid level cloud: 37%
High level cloud: 2%
Most Significant Cloud Type: medium
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

3 / 4 mph 67 / 65°F 58% 1021 mb
Low level cloud: 19%
Mid level cloud: 27%
High level cloud: 4%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

10 / 12 mph 67 / 66°F 62% 1021 mb
Low level cloud: 58%
Mid level cloud: 63%
High level cloud: 5%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

12 / 14 mph 69 / 67°F 67% 1021 mb
Low level cloud: 6%
Mid level cloud: 38%
High level cloud: 0%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

11 / 13 mph 69 / 67°F 71% 1021 mb
Low level cloud: 17%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

12 / 15 mph 65 / 65°F 80% 1021 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 4%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 03
Aug
00:00

WNW
WNW

8 / 11 mph 64 / 64°F 76% 1021 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

7 / 13 mph 59 / 59°F 73% 1021 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 3%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

6 / 12 mph 59 / 57°F 60% 1022 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 35%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

7 / 8 mph 72 / 69°F 51% 1022 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 100%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

14 / 16 mph 73 / 76°F 58% 1022 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

18 / 21 mph 75 / 77°F 71% 1021 mb
Low level cloud: 23%
Mid level cloud: 25%
High level cloud: 13%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

17 / 20 mph 74 / 76°F 80% 1021 mb
Low level cloud: 11%
Mid level cloud: 23%
High level cloud: 14%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

13 / 17 mph 70 / 70°F 85% 1022 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 69%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 04
Aug
00:00

WNW
WNW

12 / 14 mph 66 / 66°F 91% 1022 mb
Low level cloud: 41%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

9 / 12 mph 64 / 64°F 94% 1022 mb
Low level cloud: 49%
Mid level cloud: 26%
High level cloud: 33%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

5 / 8 mph 66 / 63°F 92% 1022 mb
Low level cloud: 47%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

5 / 6 mph 69 / 66°F 79% 1023 mb
Low level cloud: 32%
Mid level cloud: 9%
High level cloud: 91%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

13 / 15 mph 73 / 76°F 75% 1022 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

19 / 21 mph 74 / 77°F 64% 1021 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 32%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

19 / 22 mph 72 / 76°F 71% 1019 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 1%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

21 / 24 mph 68 / 68°F 87% 1018 mb
Low level cloud: 21%
Mid level cloud: 50%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 05
Aug
00:00

W
W

19 / 38 mph 66 / 66°F 84% 1026 mb
Low level cloud: 1%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
06:00

WNW
WNW

8 / 14 mph 67 / 67°F 87% 1026 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
12:00

WSW
WSW

19 / 41 mph 72 / 76°F 78% 1024 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
18:00

N
N

20 / 41 mph 73 / 76°F 55% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Wed 06
Aug
00:00

NE
NE

8 / 15 mph 64 / 64°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

SE
SE

11 / 23 mph 62 / 62°F 65% 1018 mb
Low level cloud: 0%
Mid level cloud: 98%
High level cloud: 53%
Most Significant Cloud Type: medium
99%
0.0 In
12:00

SE
SE

11 / 22 mph 68 / 68°F 64% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
18:00

ESE
ESE

5 / 11 mph 73 / 76°F 58% 1023 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 32%
Most Significant Cloud Type: medium
2%
0.0 In
Thu 07
Aug
00:00

ENE
ENE

13 / 26 mph 60 / 60°F 71% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 96%
Most Significant Cloud Type: high
96%
0.0 In
06:00

E
E

8 / 16 mph 63 / 63°F 73% 1021 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
12:00

ESE
ESE

13 / 26 mph 72 / 76°F 57% 1015 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 32%
Most Significant Cloud Type: medium
16%
0.0 In
18:00

ESE
ESE

8 / 16 mph 77 / 79°F 48% 1018 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Fri 08
Aug
00:00

NE
NE

7 / 15 mph 69 / 69°F 65% 1013 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 8%
Most Significant Cloud Type: medium
45%
0.0 In
06:00

E
E

12 / 25 mph 63 / 63°F 71% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

WSW
WSW

12 / 24 mph 67 / 67°F 53% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

WNW
WNW

5 / 11 mph 80 / 81°F 45% 1011 mb
Low level cloud: 0%
Mid level cloud: 51%
High level cloud: 27%
Most Significant Cloud Type: medium
52%
0.0 In
Sat 09
Aug
00:00

NNW
NNW

9 / 19 mph 68 / 68°F 65% 1022 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 13%
Most Significant Cloud Type: high
12%
0.0 In
06:00

N
N

13 / 26 mph 64 / 64°F 69% 1018 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
12:00

WSW
WSW

2 / 5 mph 75 / 77°F 46% 1024 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 37%
Most Significant Cloud Type: medium
6%
0.0 In
18:00

SSW
SSW

9 / 17 mph 74 / 77°F 60% 1020 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
Sun 10
Aug
00:00

ESE
ESE

4 / 8 mph 71 / 71°F 68% 1023 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 32%
Most Significant Cloud Type: medium
25%
0.0 In
06:00

SW
SW

2 / 5 mph 73 / 77°F 78% 1021 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 76%
Most Significant Cloud Type: medium
14%
0.0 In
12:00

ESE
ESE

9 / 20 mph 74 / 77°F 58% 1023 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: medium
4%
0.0 In
18:00

WSW
WSW

11 / 22 mph 71 / 71°F 65% 1021 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
Mon 11
Aug
00:00

ENE
ENE

15 / 30 mph 63 / 63°F 79% 1023 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
06:00

NE
NE

8 / 16 mph 67 / 67°F 68% 1025 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
12:00

SE
SE

10 / 21 mph 76 / 79°F 65% 1021 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: medium
4%
0.0 In
18:00

ESE
ESE

10 / 21 mph 77 / 79°F 57% 1023 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 15%
Most Significant Cloud Type: medium
2%
0.0 In
Tue 12
Aug
00:00

NE
NE

11 / 23 mph 64 / 64°F 77% 1019 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 87%
Most Significant Cloud Type: medium
11%
0.0 In
06:00

ENE
ENE

10 / 21 mph 64 / 64°F 73% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

WSW
WSW

4 / 8 mph 77 / 79°F 69% 1014 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 18%
Most Significant Cloud Type: medium
45%
0.0 In
18:00

E
E

14 / 28 mph 78 / 80°F 50% 1019 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Wed 13
Aug
00:00

WSW
WSW

19 / 40 mph 63 / 63°F 86% 1011 mb
Low level cloud: 82%
Mid level cloud: 57%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

ENE
ENE

8 / 17 mph 69 / 69°F 66% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 20%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

SW
SW

22 / 46 mph 64 / 64°F 68% 1012 mb
Low level cloud: 36%
Mid level cloud: 10%
High level cloud: 22%
Most Significant Cloud Type: low
41%
0.0 In
18:00

ESE
ESE

9 / 18 mph 84 / 86°F 48% 1017 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
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