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Bolingbrook 14 Day Long Range Forecast

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

Illinois, United States Of America

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

The outlook for Bolingbrook in the two weeks ahead shows the average daytime maximum temperature will be around 21°C, with a high for the two weeks of 33°C expected on the afternoon of Thursday 15th. The average minimum temperature will be 13°C, dipping to its lowest on the morning of Monday 19th at 7°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. Predictions are Tuesday 20th will have the most precipitation with an accumulation of around 33.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 13
May		15:00

ESE
ESE

 5 / 6 mph 80 / 79°F 55% 1007 mb
Low level cloud: 33%
Mid level cloud: 29%
High level cloud: 7%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 8 / 10 mph 75 / 77°F 66% 1007 mb
Low level cloud: 24%
Mid level cloud: 16%
High level cloud: 75%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 6 / 7 mph 67 / 67°F 80% 1008 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 14
May		00:00

ENE
ENE

 5 / 7 mph 64 / 64°F 86% 1007 mb
Low level cloud: 3%
Mid level cloud: 23%
High level cloud: 32%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

 4 / 6 mph 62 / 62°F 91% 1007 mb
Low level cloud: 20%
Mid level cloud: 33%
High level cloud: 72%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

 4 / 6 mph 64 / 62°F 88% 1007 mb
Low level cloud: 27%
Mid level cloud: 25%
High level cloud: 1%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

 4 / 5 mph 75 / 76°F 67% 1007 mb
Low level cloud: 17%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SE
SE

 4 / 4 mph 83 / 80°F 52% 1005 mb
Low level cloud: 46%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

 2 / 4 mph 82 / 81°F 59% 1004 mb
Low level cloud: 11%
Mid level cloud: 31%
High level cloud: 4%
Most Significant Cloud Type: low
21%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

ENE
ENE

 8 / 11 mph 75 / 77°F 70% 1004 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 7 / 11 mph 68 / 68°F 78% 1005 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 15
May		00:00

ESE
ESE

 6 / 10 mph 66 / 66°F 86% 1004 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

 6 / 12 mph 65 / 65°F 86% 1003 mb
Low level cloud: 2%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

 8 / 13 mph 69 / 67°F 87% 1003 mb
Low level cloud: 33%
Mid level cloud: 42%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

 11 / 14 mph 77 / 78°F 74% 1002 mb
Low level cloud: 51%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 15 / 17 mph 87 / 89°F 52% 1000 mb
Low level cloud: 10%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 14 / 16 mph 91 / 92°F 43% 998 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 13 / 16 mph 85 / 88°F 59% 999 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 33%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 13 / 20 mph 75 / 78°F 61% 1002 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 70%
Most Significant Cloud Type: high
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 16
May		00:00

WSW
WSW

 8 / 9 mph 74 / 78°F 65% 1004 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

WSW
WSW

 6 / 9 mph 67 / 67°F 74% 1006 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 3 / 5 mph 67 / 65°F 71% 1006 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

S
S

 9 / 10 mph 77 / 77°F 49% 1005 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

S
S

 13 / 15 mph 84 / 81°F 29% 1004 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 14 / 17 mph 85 / 82°F 33% 1000 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 22 / 34 mph 67 / 66°F 84% 1000 mb
Low level cloud: 1%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

SSW
SSW

 8 / 11 mph 64 / 64°F 89% 998 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 4%
Most Significant Cloud Type: medium
9%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sat 17
May		00:00

WSW
WSW

 11 / 17 mph 61 / 61°F 92% 997 mb
Low level cloud: 38%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

W
W

 12 / 20 mph 58 / 56°F 87% 999 mb
Low level cloud: 0%
Mid level cloud: 64%
High level cloud: 0%
Most Significant Cloud Type: medium
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 17 / 23 mph 55 / 49°F 71% 1002 mb
Low level cloud: 16%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 17 / 20 mph 55 / 50°F 64% 1004 mb
Low level cloud: 92%
Mid level cloud: 44%
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

W
W

 15 / 18 mph 55 / 51°F 66% 1007 mb
Low level cloud: 77%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 15 / 19 mph 59 / 55°F 63% 1007 mb
Low level cloud: 19%
Mid level cloud: 45%
High level cloud: 15%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 12 / 16 mph 59 / 56°F 65% 1009 mb
Low level cloud: 27%
Mid level cloud: 46%
High level cloud: 6%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 7 / 9 mph 56 / 55°F 79% 1011 mb
Low level cloud: 6%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 18
May		00:00

WNW
WNW

 6 / 9 mph 53 / 51°F 85% 1013 mb
Low level cloud: 20%
Mid level cloud: 12%
High level cloud: 2%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 6 / 9 mph 51 / 49°F 87% 1014 mb
Low level cloud: 15%
Mid level cloud: 13%
High level cloud: 17%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

 5 / 7 mph 53 / 50°F 82% 1015 mb
Low level cloud: 17%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 4 / 5 mph 63 / 60°F 60% 1015 mb
Low level cloud: 36%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 7 / 8 mph 69 / 66°F 51% 1015 mb
Low level cloud: 70%
Mid level cloud: 12%
High level cloud: 4%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 7 / 8 mph 69 / 65°F 53% 1015 mb
Low level cloud: 53%
Mid level cloud: 18%
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

ENE
ENE

 13 / 14 mph 55 / 50°F 65% 1017 mb
Low level cloud: 4%
Mid level cloud: 5%
High level cloud: 32%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 12 / 14 mph 49 / 44°F 70% 1019 mb
Low level cloud: 10%
Mid level cloud: 7%
High level cloud: 13%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 19
May		00:00

NE
NE

 8 / 10 mph 47 / 43°F 69% 1020 mb
Low level cloud: 8%
Mid level cloud: 0%
High level cloud: 92%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

 8 / 11 mph 46 / 41°F 74% 1020 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 35%
Most Significant Cloud Type: high
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

 11 / 14 mph 47 / 41°F 73% 1021 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

 10 / 11 mph 56 / 52°F 57% 1021 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

E
E

 9 / 10 mph 65 / 63°F 48% 1019 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 50%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

 11 / 13 mph 68 / 67°F 47% 1018 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 11 / 13 mph 64 / 63°F 59% 1016 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 9%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

 13 / 18 mph 61 / 61°F 69% 1015 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 92%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 20
May		00:00

SSW
SSW

 15 / 33 mph 69 / 69°F 94% 998 mb
Low level cloud: 80%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SSE
SSE

 15 / 32 mph 69 / 69°F 94% 1009 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SSW
SSW

 15 / 32 mph 85 / 89°F 58% 1001 mb
Low level cloud: 17%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
21%
0.0 In
18:00

ESE
ESE

 12 / 25 mph 54 / 51°F 84% 1013 mb
Low level cloud: 32%
Mid level cloud: 99%
High level cloud: 11%
Most Significant Cloud Type: medium
100%
0.0 In
Wed 21
May		00:00

S
S

 15 / 31 mph 66 / 66°F 93% 1005 mb
Low level cloud: 67%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
94%
0.0 In
06:00

ESE
ESE

 12 / 25 mph 52 / 48°F 96% 1003 mb
Low level cloud: 100%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.7 In
12:00

W
W

 15 / 30 mph 75 / 77°F 40% 1006 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.2 In
18:00

WNW
WNW

 9 / 18 mph 66 / 65°F 66% 1012 mb
Low level cloud: 6%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
36%
0.0 In
Thu 22
May		00:00

S
S

 7 / 15 mph 72 / 76°F 68% 1010 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 9%
Most Significant Cloud Type: medium
6%
0.0 In
06:00

NW
NW

 2 / 5 mph 55 / 55°F 86% 1014 mb
Low level cloud: 21%
Mid level cloud: 76%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
12:00

SW
SW

 7 / 15 mph 74 / 78°F 71% 1010 mb
Low level cloud: 80%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: low
85%
0.2 In
18:00

NNE
NNE

 12 / 26 mph 54 / 51°F 75% 1018 mb
Low level cloud: 85%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
91%
0.0 In
Fri 23
May		00:00

NW
NW

 2 / 4 mph 72 / 76°F 78% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.2 In
06:00

N
N

 8 / 17 mph 52 / 49°F 66% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

WNW
WNW

 11 / 24 mph 65 / 65°F 45% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

ENE
ENE

 7 / 14 mph 68 / 68°F 42% 1021 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
Sat 24
May		00:00

N
N

 4 / 9 mph 63 / 63°F 72% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

W
W

 4 / 9 mph 59 / 59°F 58% 1023 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 1%
Most Significant Cloud Type: medium
2%
0.0 In
12:00

SSE
SSE

 3 / 7 mph 74 / 77°F 44% 1018 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 100%
Most Significant Cloud Type: medium
20%
0.0 In
18:00

SSW
SSW

 5 / 10 mph 76 / 77°F 47% 1019 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
Sun 25
May		00:00

SSE
SSE

 11 / 23 mph 62 / 62°F 86% 1008 mb
Low level cloud: 29%
Mid level cloud: 88%
High level cloud: 2%
Most Significant Cloud Type: medium
100%
0.0 In
06:00

SSW
SSW

 7 / 15 mph 59 / 59°F 67% 1020 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 31%
Most Significant Cloud Type: medium
46%
0.0 In
12:00

NW
NW

 20 / 42 mph 45 / 38°F 77% 1014 mb
Low level cloud: 99%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
18:00

SW
SW

 11 / 23 mph 67 / 67°F 73% 1016 mb
Low level cloud: 58%
Mid level cloud: 49%
High level cloud: 3%
Most Significant Cloud Type: low
75%
0.0 In
Mon 26
May		00:00

NNW
NNW

 5 / 11 mph 53 / 52°F 75% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: high
3%
0.0 In
06:00

SW
SW

 6 / 12 mph 63 / 63°F 90% 1016 mb
Low level cloud: 39%
Mid level cloud: 39%
High level cloud: 100%
Most Significant Cloud Type: low
64%
0.0 In
12:00

WSW
WSW

 5 / 10 mph 63 / 63°F 40% 1025 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 90%
Most Significant Cloud Type: medium
47%
0.0 In
18:00

NNW
NNW

 7 / 15 mph 78 / 80°F 61% 1014 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 4%
Most Significant Cloud Type: medium
18%
0.2 In
Tue 27
May		00:00

N
N

 2 / 5 mph 64 / 64°F 64% 1024 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: medium
13%
0.0 In
06:00

WSW
WSW

 2 / 5 mph 69 / 69°F 68% 1017 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 5%
Most Significant Cloud Type: medium
4%
0.0 In
12:00

SSE
SSE

 10 / 20 mph 54 / 51°F 72% 1022 mb
Low level cloud: 52%
Mid level cloud: 90%
High level cloud: 94%
Most Significant Cloud Type: low
94%
0.0 In
18:00

NE
NE

 5 / 11 mph 78 / 79°F 48% 1015 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 33%
Most Significant Cloud Type: medium
25%
0.0 In
Wed 28
May		00:00

WNW
WNW

 3 / 6 mph 53 / 54°F 92% 1020 mb
Low level cloud: 23%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
25%
0.0 In
06:00

ENE
ENE

 11 / 22 mph 60 / 60°F 68% 1017 mb
Low level cloud: 0%
Mid level cloud: 68%
High level cloud: 0%
Most Significant Cloud Type: medium
68%
0.0 In
12:00

SSW
SSW

 7 / 14 mph 70 / 70°F 48% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

NE
NE

 11 / 23 mph 67 / 67°F 48% 1019 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
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