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Stanford-le-Hope 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Stanford-le-Hope

Essex, United Kingdom

Long range weather outlook for Stanford-le-Hope includes 14 day forecast summary:

For Stanford-le-Hope in the coming two weeks the average daytime maximum temperature will be around 13°C, with a high for the two weeks of 16°C expected on the afternoon of Thursday 23rd. The average minimum temperature will be 10°C, dipping to its lowest on the morning of Monday 27th at 3°C. The next 14 days will have most days seeing a little rain. Current predictions suggest Monday 20th will have the most precipitation with an accumulation of around 10.0mm. On the whole winds are likely to be moderate. The forecast suggests the strongest wind will be on the morning of Friday 24th, coming from a south westerly direction, and reaching around 29mph.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 17
Oct		18:00

ENE
ENE

 6 / 7 mph 59 / 57°F 69% 1026 mb
Low level cloud: 39%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 5 / 6 mph 55 / 55°F 69% 1026 mb
Low level cloud: 51%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
Oct		00:00

ENE
ENE

 5 / 9 mph 51 / 50°F 70% 1026 mb
Low level cloud: 55%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

 2 / 4 mph 51 / 51°F 74% 1026 mb
Low level cloud: 33%
Mid level cloud: 0%
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

SE
SE

 4 / 8 mph 50 / 49°F 78% 1025 mb
Low level cloud: 34%
Mid level cloud: 0%
High level cloud: 77%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

 7 / 10 mph 55 / 53°F 69% 1025 mb
Low level cloud: 9%
Mid level cloud: 0%
High level cloud: 49%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SE
SE

 10 / 12 mph 59 / 56°F 57% 1024 mb
Low level cloud: 36%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

 10 / 13 mph 58 / 56°F 58% 1021 mb
Low level cloud: 4%
Mid level cloud: 29%
High level cloud: 100%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ESE
ESE

 9 / 13 mph 55 / 53°F 66% 1020 mb
Low level cloud: 0%
Mid level cloud: 67%
High level cloud: 100%
Most Significant Cloud Type: medium
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

 10 / 16 mph 55 / 52°F 68% 1018 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
Oct		00:00

SE
SE

 9 / 13 mph 55 / 53°F 69% 1015 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

 11 / 16 mph 55 / 52°F 72% 1012 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 99%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

 11 / 17 mph 54 / 51°F 72% 1009 mb
Low level cloud: 0%
Mid level cloud: 67%
High level cloud: 100%
Most Significant Cloud Type: medium
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

 14 / 23 mph 56 / 52°F 68% 1006 mb
Low level cloud: 0%
Mid level cloud: 76%
High level cloud: 5%
Most Significant Cloud Type: medium
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 15 / 20 mph 57 / 54°F 90% 1003 mb
Low level cloud: 99%
Mid level cloud: 83%
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

S
S

 19 / 22 mph 58 / 55°F 92% 999 mb
Low level cloud: 100%
Mid level cloud: 68%
High level cloud: 64%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

S
S

 19 / 26 mph 57 / 53°F 91% 998 mb
Low level cloud: 98%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

S
S

 12 / 19 mph 56 / 53°F 96% 995 mb
Low level cloud: 99%
Mid level cloud: 80%
High level cloud: 71%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Mon 20
Oct		00:00

SSW
SSW

 9 / 13 mph 56 / 53°F 93% 995 mb
Low level cloud: 46%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
54%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

SSW
SSW

 12 / 20 mph 54 / 51°F 92% 994 mb
Low level cloud: 75%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 11 / 19 mph 53 / 50°F 90% 992 mb
Low level cloud: 51%
Mid level cloud: 100%
High level cloud: 11%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 15 / 24 mph 56 / 51°F 81% 991 mb
Low level cloud: 26%
Mid level cloud: 59%
High level cloud: 50%
Most Significant Cloud Type: low
53%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

S
S

 21 / 27 mph 58 / 53°F 89% 988 mb
Low level cloud: 86%
Mid level cloud: 78%
High level cloud: 79%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

SSW
SSW

 19 / 23 mph 59 / 55°F 82% 985 mb
Low level cloud: 69%
Mid level cloud: 19%
High level cloud: 56%
Most Significant Cloud Type: low
82%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

SSW
SSW

 14 / 16 mph 58 / 55°F 88% 985 mb
Low level cloud: 78%
Mid level cloud: 43%
High level cloud: 32%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 18 / 21 mph 56 / 52°F 88% 986 mb
Low level cloud: 98%
Mid level cloud: 45%
High level cloud: 21%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
Oct		00:00

W
W

 16 / 23 mph 54 / 49°F 87% 989 mb
Low level cloud: 90%
Mid level cloud: 30%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 14 / 20 mph 53 / 49°F 87% 990 mb
Low level cloud: 51%
Mid level cloud: 43%
High level cloud: 99%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 11 / 18 mph 51 / 46°F 92% 992 mb
Low level cloud: 29%
Mid level cloud: 44%
High level cloud: 4%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 13 / 17 mph 54 / 49°F 84% 993 mb
Low level cloud: 66%
Mid level cloud: 43%
High level cloud: 30%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 14 / 17 mph 57 / 53°F 74% 994 mb
Low level cloud: 74%
Mid level cloud: 29%
High level cloud: 16%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 13 / 19 mph 57 / 54°F 80% 994 mb
Low level cloud: 71%
Mid level cloud: 70%
High level cloud: 13%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 11 / 16 mph 53 / 49°F 82% 996 mb
Low level cloud: 21%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 15 / 22 mph 51 / 46°F 79% 999 mb
Low level cloud: 40%
Mid level cloud: 16%
High level cloud: 4%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
Oct		00:00

W
W

 13 / 20 mph 49 / 44°F 82% 1000 mb
Low level cloud: 20%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 10 / 16 mph 48 / 44°F 87% 1001 mb
Low level cloud: 12%
Mid level cloud: 2%
High level cloud: 3%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 8 / 14 mph 47 / 43°F 89% 1002 mb
Low level cloud: 5%
Mid level cloud: 2%
High level cloud: 6%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 8 / 11 mph 51 / 48°F 77% 1003 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 6%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 10 / 12 mph 58 / 55°F 58% 1002 mb
Low level cloud: 12%
Mid level cloud: 17%
High level cloud: 14%
Most Significant Cloud Type: low
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 11 / 15 mph 59 / 56°F 64% 1000 mb
Low level cloud: 66%
Mid level cloud: 21%
High level cloud: 7%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSE
SSE

 12 / 18 mph 54 / 51°F 78% 998 mb
Low level cloud: 67%
Mid level cloud: 93%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

 15 / 22 mph 55 / 51°F 93% 996 mb
Low level cloud: 99%
Mid level cloud: 88%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
Oct		00:00

S
S

 12 / 24 mph 55 / 52°F 97% 993 mb
Low level cloud: 94%
Mid level cloud: 43%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

SSW
SSW

 11 / 24 mph 54 / 51°F 94% 991 mb
Low level cloud: 90%
Mid level cloud: 24%
High level cloud: 43%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 17 / 36 mph 53 / 47°F 85% 990 mb
Low level cloud: 100%
Mid level cloud: 63%
High level cloud: 14%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 19 / 27 mph 56 / 51°F 73% 994 mb
Low level cloud: 13%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 21 / 24 mph 59 / 55°F 61% 995 mb
Low level cloud: 2%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 21 / 24 mph 61 / 60°F 60% 994 mb
Low level cloud: 1%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

 25 / 28 mph 59 / 55°F 69% 993 mb
Low level cloud: 40%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 27 / 30 mph 56 / 51°F 72% 991 mb
Low level cloud: 69%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 24
Oct		00:00

SW
SW

 11 / 23 mph 53 / 49°F 83% 1005 mb
Low level cloud: 4%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
54%
0.0 In
06:00

SW
SW

 13 / 28 mph 51 / 46°F 67% 1009 mb
Low level cloud: 2%
Mid level cloud: 13%
High level cloud: 10%
Most Significant Cloud Type: medium
18%
0.0 In
12:00

WSW
WSW

 19 / 33 mph 55 / 51°F 56% 1006 mb
Low level cloud: 22%
Mid level cloud: 4%
High level cloud: 12%
Most Significant Cloud Type: low
25%
0.0 In
18:00

WSW
WSW

 13 / 25 mph 57 / 53°F 78% 1005 mb
Low level cloud: 7%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
12%
0.0 In
Sat 25
Oct		00:00

SW
SW

 21 / 44 mph 53 / 48°F 80% 994 mb
Low level cloud: 98%
Mid level cloud: 100%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NNE
NNE

 5 / 10 mph 50 / 48°F 93% 996 mb
Low level cloud: 86%
Mid level cloud: 77%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.0 In
12:00

W
W

 19 / 39 mph 49 / 43°F 87% 988 mb
Low level cloud: 99%
Mid level cloud: 69%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

N
N

 11 / 23 mph 53 / 49°F 70% 1013 mb
Low level cloud: 18%
Mid level cloud: 44%
High level cloud: 51%
Most Significant Cloud Type: low
39%
0.0 In
Sun 26
Oct		00:00

W
W

 12 / 24 mph 49 / 45°F 82% 997 mb
Low level cloud: 75%
Mid level cloud: 52%
High level cloud: 12%
Most Significant Cloud Type: low
94%
0.0 In
06:00

NW
NW

 10 / 21 mph 38 / 31°F 78% 1016 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
12:00

NNW
NNW

 23 / 45 mph 44 / 35°F 89% 1005 mb
Low level cloud: 100%
Mid level cloud: 82%
High level cloud: 78%
Most Significant Cloud Type: low
100%
0.1 In
18:00

W
W

 9 / 20 mph 45 / 40°F 58% 1016 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Mon 27
Oct		00:00

NNW
NNW

 17 / 33 mph 41 / 33°F 80% 1017 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.1 In
06:00

WSW
WSW

 11 / 23 mph 42 / 36°F 92% 1006 mb
Low level cloud: 37%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
64%
0.0 In
12:00

NW
NW

 15 / 30 mph 45 / 39°F 53% 1024 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 4%
Most Significant Cloud Type: medium
1%
0.0 In
18:00

W
W

 10 / 20 mph 49 / 45°F 87% 1002 mb
Low level cloud: 75%
Mid level cloud: 53%
High level cloud: 13%
Most Significant Cloud Type: low
95%
0.1 In
Tue 28
Oct		00:00

W
W

 13 / 26 mph 45 / 39°F 80% 1024 mb
Low level cloud: 90%
Mid level cloud: 80%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NNW
NNW

 10 / 21 mph 41 / 35°F 86% 1005 mb
Low level cloud: 69%
Mid level cloud: 44%
High level cloud: 60%
Most Significant Cloud Type: low
91%
0.3 In
12:00

WNW
WNW

 15 / 30 mph 54 / 50°F 71% 1025 mb
Low level cloud: 84%
Mid level cloud: 45%
High level cloud: 21%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NNW
NNW

 13 / 28 mph 46 / 40°F 87% 1014 mb
Low level cloud: 96%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
Wed 29
Oct		00:00

W
W

 9 / 18 mph 49 / 46°F 83% 1026 mb
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: medium
9%
0.0 In
06:00

NW
NW

 11 / 23 mph 36 / 28°F 76% 1021 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 19%
Most Significant Cloud Type: medium
2%
0.0 In
12:00

W
W

 12 / 24 mph 56 / 53°F 61% 1026 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 16%
Most Significant Cloud Type: medium
26%
0.0 In
18:00

WSW
WSW

 12 / 24 mph 45 / 39°F 67% 1018 mb
Low level cloud: 0%
Mid level cloud: 98%
High level cloud: 83%
Most Significant Cloud Type: medium
100%
0.0 In
Thu 30
Oct		00:00

W
W

 8 / 15 mph 51 / 47°F 90% 1028 mb
Low level cloud: 3%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
0.0 In
06:00

WSW
WSW

 19 / 40 mph 45 / 37°F 75% 999 mb
Low level cloud: 23%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.2 In
12:00

NW
NW

 7 / 15 mph 55 / 53°F 74% 1029 mb
Low level cloud: 11%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
18:00

NNW
NNW

 23 / 49 mph 49 / 42°F 75% 1006 mb
Low level cloud: 95%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Fri 31
Oct		00:00

WNW
WNW

 3 / 5 mph 51 / 51°F 90% 1029 mb
Low level cloud: 14%
Mid level cloud: 46%
High level cloud: 39%
Most Significant Cloud Type: medium
87%
0.0 In
06:00

W
W

 8 / 17 mph 40 / 35°F 76% 1017 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 94%
Most Significant Cloud Type: medium
9%
0.0 In
12:00

SW
SW

 4 / 8 mph 60 / 60°F 66% 1030 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
18:00

S
S

 15 / 31 mph 49 / 43°F 74% 1008 mb
Low level cloud: 97%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Sat 01
Nov		00:00

SSW
SSW

 5 / 9 mph 51 / 49°F 90% 1029 mb
Low level cloud: 6%
Mid level cloud: 46%
High level cloud: 59%
Most Significant Cloud Type: medium
66%
0.0 In
06:00

SW
SW

 10 / 21 mph 51 / 47°F 92% 998 mb
Low level cloud: 12%
Mid level cloud: 17%
High level cloud: 86%
Most Significant Cloud Type: low
28%
0.3 In
12:00

SSW
SSW

 10 / 19 mph 57 / 55°F 66% 1026 mb
Low level cloud: 12%
Mid level cloud: 99%
High level cloud: 18%
Most Significant Cloud Type: medium
100%
0.0 In
18:00

SSW
SSW

 25 / 52 mph 57 / 52°F 87% 992 mb
Low level cloud: 99%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.2 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