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Yountville 14 Day Long Range Forecast

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

California, United States Of America

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

Over the next 14 days the Yountville forecast suggests the average daytime maximum temperature will be around 32°C, with a high for the two weeks of 37°C expected on the afternoon of Wednesday 17th. The mean minimum temperature will be 16°C, dipping to its lowest on the morning of Monday 15th at 13°C. Expect the coming 14 days to remain predominantly dry. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 14
Sep		01:00

W
W

 4 / 9 mph 52 / 52°F 86% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

W
W

 4 / 7 mph 52 / 52°F 91% 1012 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
07:00

WNW
WNW

 2 / 4 mph 59 / 59°F 78% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 4 / 4 mph 83 / 81°F 40% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 8 / 9 mph 91 / 89°F 35% 1011 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 10 / 11 mph 87 / 87°F 39% 1010 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 4 / 7 mph 71 / 69°F 70% 1011 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 2 / 4 mph 64 / 64°F 83% 1012 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 15
Sep		16:00

SSW
SSW

 6 / 8 mph 98 / 94°F 20% 1009 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
19:00

W
W

 3 / 6 mph 77 / 77°F 47% 1010 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
22:00

WNW
WNW

 3 / 6 mph 69 / 69°F 55% 1011 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
Tue 16
Sep		01:00

WNW
WNW

 2 / 4 mph 64 / 64°F 57% 1012 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
04:00

NNW
NNW

 2 / 4 mph 62 / 62°F 56% 1012 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
07:00

NNE
NNE

 1 / 3 mph 68 / 67°F 47% 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
10:00

SSE
SSE

 3 / 4 mph 93 / 88°F 23% 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
13:00

SSW
SSW

 7 / 8 mph 98 / 94°F 18% 1012 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
16:00

WSW
WSW

 8 / 9 mph 97 / 93°F 18% 1012 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
19:00

W
W

 4 / 8 mph 78 / 76°F 33% 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
22:00

WNW
WNW

 3 / 7 mph 70 / 70°F 35% 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
Wed 17
Sep		01:00

WNW
WNW

 4 / 8 mph 64 / 64°F 35% 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
04:00

NW
NW

 3 / 6 mph 63 / 63°F 35% 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
07:00

NW
NW

 2 / 4 mph 68 / 67°F 31% 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
10:00

SW
SW

 3 / 4 mph 94 / 89°F 15% 1014 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 3%
Most Significant Cloud Type: high
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 7 / 9 mph 98 / 95°F 14% 1012 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
16:00

WSW
WSW

 8 / 9 mph 94 / 89°F 17% 1010 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 94%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 4 / 9 mph 75 / 74°F 29% 1011 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 36%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

 4 / 8 mph 68 / 68°F 38% 1011 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 97%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 18
Sep		01:00

WSW
WSW

 4 / 8 mph 66 / 66°F 45% 1010 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

 3 / 7 mph 63 / 63°F 59% 1010 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 45%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

 3 / 4 mph 65 / 64°F 61% 1011 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 33%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 5 / 6 mph 81 / 78°F 41% 1012 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 66%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

 5 / 6 mph 87 / 83°F 33% 1011 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 90%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSW
SSW

 5 / 6 mph 81 / 80°F 47% 1011 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 69%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 2 / 3 mph 70 / 67°F 64% 1012 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SW
SW

 3 / 5 mph 66 / 66°F 67% 1012 mb
Low level cloud: 0%
Mid level cloud: 71%
High level cloud: 35%
Most Significant Cloud Type: medium
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 19
Sep		01:00

SW
SW

 2 / 2 mph 65 / 65°F 75% 1012 mb
Low level cloud: 0%
Mid level cloud: 49%
High level cloud: 15%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

 1 / 1 mph 64 / 64°F 79% 1013 mb
Low level cloud: 26%
Mid level cloud: 97%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSE
SSE

 1 / 2 mph 66 / 65°F 77% 1014 mb
Low level cloud: 12%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSE
SSE

 2 / 2 mph 79 / 78°F 54% 1014 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

 4 / 5 mph 88 / 86°F 36% 1013 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 8 / 9 mph 87 / 85°F 38% 1012 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
19:00

W
W

 4 / 7 mph 72 / 76°F 65% 1013 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

 4 / 7 mph 65 / 65°F 75% 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
Sat 20
Sep		01:00

WNW
WNW

 3 / 6 mph 60 / 60°F 76% 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
04:00

NW
NW

 4 / 8 mph 58 / 58°F 73% 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
07:00

N
N

 2 / 4 mph 65 / 63°F 63% 1016 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 2 / 2 mph 89 / 86°F 32% 1015 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 7 / 8 mph 94 / 90°F 24% 1014 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 9 / 10 mph 90 / 86°F 29% 1013 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 5 / 10 mph 69 / 67°F 55% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 16%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WNW
WNW

 5 / 10 mph 62 / 62°F 68% 1016 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 21
Sep		04:00

W
W

 1 / 3 mph 63 / 63°F 66% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

S
S

 2 / 3 mph 90 / 87°F 22% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

SW
SW

 8 / 10 mph 84 / 82°F 31% 1010 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
22:00

SW
SW

 2 / 4 mph 61 / 61°F 80% 1011 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: medium
4%
0.0 In
Mon 22
Sep		04:00

W
W

 3 / 5 mph 56 / 56°F 95% 1012 mb
Low level cloud: 11%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
12%
0.0 In
10:00

SSW
SSW

 0 / 1 mph 86 / 84°F 31% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

SW
SW

 5 / 6 mph 86 / 86°F 39% 1009 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
22:00

WNW
WNW

 2 / 4 mph 65 / 65°F 59% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Tue 23
Sep		04:00

N
N

 2 / 4 mph 65 / 65°F 93% 1011 mb
Low level cloud: 33%
Mid level cloud: 22%
High level cloud: 97%
Most Significant Cloud Type: low
52%
0.1 In
10:00

S
S

 3 / 4 mph 91 / 88°F 24% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

WSW
WSW

 11 / 21 mph 76 / 78°F 58% 1010 mb
Low level cloud: 1%
Mid level cloud: 8%
High level cloud: 3%
Most Significant Cloud Type: medium
10%
0.4 In
22:00

WSW
WSW

 4 / 8 mph 60 / 60°F 67% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Wed 24
Sep		04:00

WSW
WSW

 3 / 5 mph 65 / 65°F 86% 1017 mb
Low level cloud: 57%
Mid level cloud: 16%
High level cloud: 4%
Most Significant Cloud Type: low
62%
0.0 In
10:00

SSW
SSW

 4 / 4 mph 82 / 81°F 35% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

W
W

 11 / 21 mph 79 / 81°F 54% 1015 mb
Low level cloud: 13%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
19%
0.0 In
22:00

W
W

 4 / 8 mph 60 / 60°F 80% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Thu 25
Sep		04:00

NW
NW

 4 / 7 mph 56 / 56°F 94% 1016 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

WSW
WSW

 6 / 7 mph 82 / 82°F 44% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
16:00

WSW
WSW

 9 / 17 mph 82 / 80°F 25% 1012 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 1%
Most Significant Cloud Type: high
0%
0.0 In
22:00

WNW
WNW

 5 / 11 mph 55 / 54°F 73% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Fri 26
Sep		04:00

W
W

 5 / 9 mph 53 / 52°F 86% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
10:00

WNW
WNW

 2 / 2 mph 82 / 79°F 21% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

WNW
WNW

 12 / 23 mph 74 / 75°F 29% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
22:00

NW
NW

 5 / 11 mph 57 / 57°F 53% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sat 27
Sep		04:00

NNW
NNW

 5 / 11 mph 51 / 50°F 67% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

N
N

 4 / 4 mph 86 / 82°F 15% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

N
N

 13 / 26 mph 81 / 78°F 17% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
22:00

NNW
NNW

 3 / 7 mph 67 / 67°F 30% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 28
Sep		04:00

N
N

 8 / 17 mph 61 / 61°F 30% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

NE
NE

 6 / 6 mph 91 / 87°F 11% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

ENE
ENE

 6 / 12 mph 87 / 83°F 15% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
22:00

NNW
NNW

 4 / 8 mph 73 / 72°F 14% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Mon 29
Sep		04:00

NNE
NNE

 3 / 7 mph 64 / 64°F 29% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

ENE
ENE

 3 / 4 mph 97 / 94°F 9% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

SW
SW

 7 / 14 mph 90 / 87°F 14% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
22:00

NW
NW

 4 / 8 mph 73 / 72°F 18% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
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