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Quarndon 14 Day Long Range Forecast

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

Derbyshire, United Kingdom

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

Taking a look at Quarndon over the coming two weeks and the average daytime maximum temperature will be around 21°C, with a high for the two weeks of 25°C expected on the evening of Monday 24th. The mean minimum temperature will be 12°C, dipping to its lowest on the morning of Monday 1st at 9°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. The indicators are that Wednesday 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
Fri 21
Jun		18:00

WSW
WSW

 13 / 18 mph 65 / 63°F 73% 1009 mb
Low level cloud: 0%
Mid level cloud: 55%
High level cloud: 32%
Most Significant Cloud Type: medium
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 9 / 16 mph 56 / 53°F 83% 1010 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 90%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 22
Jun		00:00

SSW
SSW

 7 / 12 mph 54 / 52°F 90% 1010 mb
Low level cloud: 96%
Mid level cloud: 78%
High level cloud: 87%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 8 / 12 mph 54 / 52°F 95% 1009 mb
Low level cloud: 89%
Mid level cloud: 44%
High level cloud: 9%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 7 / 9 mph 56 / 54°F 92% 1010 mb
Low level cloud: 80%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 10 / 13 mph 56 / 54°F 90% 1012 mb
Low level cloud: 76%
Mid level cloud: 58%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 12 / 14 mph 64 / 63°F 68% 1013 mb
Low level cloud: 48%
Mid level cloud: 3%
High level cloud: 1%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 9 / 10 mph 67 / 65°F 59% 1013 mb
Low level cloud: 8%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 6 / 7 mph 67 / 65°F 70% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 4 / 6 mph 61 / 59°F 83% 1016 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 23
Jun		00:00

WSW
WSW

 4 / 8 mph 55 / 54°F 89% 1017 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 7%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 4 / 8 mph 51 / 50°F 90% 1018 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 30%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 4 / 6 mph 56 / 54°F 84% 1019 mb
Low level cloud: 77%
Mid level cloud: 20%
High level cloud: 3%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 4 / 6 mph 62 / 60°F 77% 1020 mb
Low level cloud: 85%
Mid level cloud: 2%
High level cloud: 2%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 5 / 6 mph 71 / 68°F 69% 1020 mb
Low level cloud: 26%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 5 / 7 mph 71 / 69°F 72% 1020 mb
Low level cloud: 87%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

 4 / 5 mph 73 / 69°F 76% 1020 mb
Low level cloud: 61%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 4 / 8 mph 67 / 64°F 86% 1021 mb
Low level cloud: 8%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 24
Jun		00:00

SW
SW

 2 / 5 mph 61 / 61°F 88% 1021 mb
Low level cloud: 14%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 2 / 4 mph 58 / 58°F 90% 1020 mb
Low level cloud: 20%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 3 / 4 mph 64 / 62°F 85% 1020 mb
Low level cloud: 20%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 6 / 7 mph 73 / 69°F 72% 1020 mb
Low level cloud: 48%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 8 / 9 mph 76 / 77°F 64% 1019 mb
Low level cloud: 39%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 6 / 8 mph 75 / 77°F 64% 1018 mb
Low level cloud: 91%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 5 / 6 mph 77 / 77°F 77% 1017 mb
Low level cloud: 56%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 1 / 3 mph 70 / 67°F 82% 1017 mb
Low level cloud: 67%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 25
Jun		00:00

SSW
SSW

 4 / 7 mph 65 / 65°F 86% 1017 mb
Low level cloud: 27%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 4 / 7 mph 61 / 61°F 94% 1016 mb
Low level cloud: 18%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 4 / 6 mph 65 / 62°F 91% 1016 mb
Low level cloud: 41%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 5 / 6 mph 71 / 68°F 71% 1015 mb
Low level cloud: 8%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

 6 / 7 mph 75 / 76°F 58% 1014 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
15:00

SSE
SSE

 6 / 8 mph 76 / 77°F 57% 1013 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
18:00

S
S

 4 / 5 mph 76 / 77°F 69% 1012 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SE
SE

 2 / 3 mph 69 / 65°F 80% 1012 mb
Low level cloud: 5%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 26
Jun		00:00

ENE
ENE

 4 / 8 mph 64 / 64°F 85% 1011 mb
Low level cloud: 44%
Mid level cloud: 61%
High level cloud: 0%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

 5 / 9 mph 63 / 63°F 88% 1010 mb
Low level cloud: 10%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

 9 / 12 mph 65 / 62°F 87% 1009 mb
Low level cloud: 3%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

 11 / 13 mph 72 / 70°F 77% 1007 mb
Low level cloud: 51%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 12 / 20 mph 72 / 76°F 79% 1006 mb
Low level cloud: 73%
Mid level cloud: 44%
High level cloud: 11%
Most Significant Cloud Type: low
89%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

SSW
SSW

 6 / 9 mph 70 / 70°F 81% 1005 mb
Low level cloud: 26%
Mid level cloud: 87%
High level cloud: 5%
Most Significant Cloud Type: medium
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

WNW
WNW

 9 / 11 mph 68 / 65°F 90% 1006 mb
Low level cloud: 36%
Mid level cloud: 50%
High level cloud: 42%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 7 / 11 mph 63 / 62°F 96% 1007 mb
Low level cloud: 49%
Mid level cloud: 64%
High level cloud: 100%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 27
Jun		00:00

WNW
WNW

 11 / 16 mph 55 / 52°F 97% 1007 mb
Low level cloud: 79%
Mid level cloud: 23%
High level cloud: 18%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 11 / 16 mph 55 / 52°F 92% 1007 mb
Low level cloud: 94%
Mid level cloud: 28%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 11 / 15 mph 56 / 53°F 91% 1008 mb
Low level cloud: 89%
Mid level cloud: 45%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 13 / 16 mph 59 / 59°F 82% 1008 mb
Low level cloud: 92%
Mid level cloud: 26%
High level cloud: 15%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 12 / 13 mph 63 / 63°F 76% 1008 mb
Low level cloud: 90%
Mid level cloud: 16%
High level cloud: 33%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 13 / 15 mph 63 / 63°F 76% 1008 mb
Low level cloud: 96%
Mid level cloud: 13%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 11 / 13 mph 61 / 60°F 81% 1008 mb
Low level cloud: 70%
Mid level cloud: 22%
High level cloud: 32%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 6 / 9 mph 58 / 55°F 93% 1009 mb
Low level cloud: 9%
Mid level cloud: 6%
High level cloud: 32%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 28
Jun		00:00

SE
SE

 3 / 6 mph 69 / 69°F 94% 1019 mb
Low level cloud: 7%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
9%
0.0 In
06:00

NW
NW

 10 / 21 mph 53 / 50°F 94% 1016 mb
Low level cloud: 95%
Mid level cloud: 59%
High level cloud: 58%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SE
SE

 17 / 36 mph 59 / 55°F 87% 1003 mb
Low level cloud: 97%
Mid level cloud: 45%
High level cloud: 10%
Most Significant Cloud Type: low
100%
0.0 In
18:00

S
S

 9 / 18 mph 72 / 72°F 69% 1014 mb
Low level cloud: 8%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
9%
0.0 In
Sat 29
Jun		00:00

WNW
WNW

 13 / 27 mph 57 / 54°F 94% 1016 mb
Low level cloud: 82%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: low
96%
0.0 In
06:00

W
W

 7 / 13 mph 53 / 51°F 88% 1018 mb
Low level cloud: 15%
Mid level cloud: 46%
High level cloud: 9%
Most Significant Cloud Type: medium
87%
0.0 In
12:00

NNE
NNE

 11 / 23 mph 65 / 65°F 61% 1022 mb
Low level cloud: 94%
Mid level cloud: 2%
High level cloud: 33%
Most Significant Cloud Type: low
98%
0.0 In
18:00

W
W

 7 / 16 mph 66 / 66°F 69% 1019 mb
Low level cloud: 42%
Mid level cloud: 5%
High level cloud: 99%
Most Significant Cloud Type: low
55%
0.0 In
Sun 30
Jun		00:00

NNW
NNW

 9 / 18 mph 54 / 52°F 92% 1014 mb
Low level cloud: 82%
Mid level cloud: 76%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

S
S

 6 / 12 mph 56 / 55°F 86% 1019 mb
Low level cloud: 95%
Mid level cloud: 95%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

WNW
WNW

 13 / 27 mph 61 / 62°F 57% 1019 mb
Low level cloud: 39%
Mid level cloud: 11%
High level cloud: 32%
Most Significant Cloud Type: low
46%
0.0 In
18:00

SW
SW

 12 / 26 mph 66 / 66°F 86% 1015 mb
Low level cloud: 40%
Mid level cloud: 63%
High level cloud: 0%
Most Significant Cloud Type: low
62%
0.1 In
Mon 01
Jul		00:00

WSW
WSW

 6 / 12 mph 52 / 51°F 91% 1021 mb
Low level cloud: 41%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
51%
0.0 In
06:00

SSW
SSW

 11 / 23 mph 56 / 53°F 98% 1011 mb
Low level cloud: 94%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.4 In
12:00

WSW
WSW

 15 / 30 mph 70 / 70°F 61% 1017 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
18:00

WSW
WSW

 7 / 14 mph 68 / 68°F 85% 1009 mb
Low level cloud: 84%
Mid level cloud: 27%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
Tue 02
Jul		00:00

W
W

 11 / 22 mph 59 / 59°F 84% 1016 mb
Low level cloud: 92%
Mid level cloud: 43%
High level cloud: 21%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SW
SW

 11 / 22 mph 55 / 52°F 91% 1004 mb
Low level cloud: 54%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
81%
0.0 In
12:00

WNW
WNW

 11 / 24 mph 55 / 52°F 80% 1017 mb
Low level cloud: 23%
Mid level cloud: 55%
High level cloud: 99%
Most Significant Cloud Type: low
54%
0.0 In
18:00

WSW
WSW

 15 / 32 mph 60 / 60°F 72% 998 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 12%
Most Significant Cloud Type: medium
23%
0.3 In
Wed 03
Jul		00:00

WSW
WSW

 10 / 21 mph 54 / 50°F 79% 1014 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.0 In
06:00

SW
SW

 13 / 28 mph 53 / 49°F 92% 995 mb
Low level cloud: 24%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.1 In
12:00

WNW
WNW

 13 / 27 mph 60 / 60°F 82% 1013 mb
Low level cloud: 90%
Mid level cloud: 20%
High level cloud: 5%
Most Significant Cloud Type: low
97%
0.0 In
18:00

W
W

 14 / 29 mph 60 / 60°F 77% 997 mb
Low level cloud: 12%
Mid level cloud: 81%
High level cloud: 31%
Most Significant Cloud Type: medium
100%
0.1 In
Thu 04
Jul		00:00

WNW
WNW

 9 / 19 mph 56 / 54°F 90% 1017 mb
Low level cloud: 76%
Mid level cloud: 56%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.0 In
06:00

WSW
WSW

 13 / 26 mph 54 / 50°F 89% 998 mb
Low level cloud: 48%
Mid level cloud: 75%
High level cloud: 0%
Most Significant Cloud Type: low
73%
0.0 In
12:00

NNW
NNW

 9 / 18 mph 64 / 64°F 73% 1021 mb
Low level cloud: 92%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
94%
0.0 In
18:00

WNW
WNW

 9 / 20 mph 62 / 62°F 79% 999 mb
Low level cloud: 21%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
27%
0.0 In
Fri 05
Jul		00:00

E
E

 3 / 5 mph 62 / 62°F 93% 1024 mb
Low level cloud: 33%
Mid level cloud: 5%
High level cloud: 32%
Most Significant Cloud Type: low
38%
0.0 In
06:00

W
W

 13 / 27 mph 53 / 49°F 86% 1005 mb
Low level cloud: 30%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
12:00

NE
NE

 9 / 18 mph 71 / 71°F 67% 1023 mb
Low level cloud: 98%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
18:00

W
W

 17 / 36 mph 59 / 55°F 76% 1009 mb
Low level cloud: 19%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.1 In
Sat 06
Jul		00:00

NE
NE

 3 / 6 mph 62 / 62°F 93% 1021 mb
Low level cloud: 50%
Mid level cloud: 7%
High level cloud: 60%
Most Significant Cloud Type: low
59%
0.0 In
06:00

W
W

 14 / 30 mph 53 / 49°F 85% 1013 mb
Low level cloud: 86%
Mid level cloud: 35%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NE
NE

 17 / 36 mph 73 / 77°F 62% 1017 mb
Low level cloud: 16%
Mid level cloud: 3%
High level cloud: 12%
Most Significant Cloud Type: low
18%
0.0 In
18:00

WSW
WSW

 13 / 26 mph 59 / 56°F 86% 1012 mb
Low level cloud: 20%
Mid level cloud: 100%
High level cloud: 83%
Most Significant Cloud Type: medium
100%
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