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St. Helena 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for St. Helena

California, United States Of America

Long range weather outlook for St. Helena includes 14 day forecast summary:

Taking a look at St. Helena over the coming two weeks and the average daytime maximum temperature will be around 29°C, with a high for the two weeks of 31°C expected on the afternoon of Tuesday 21st. The mean minimum temperature will be 7°C, dipping to its lowest on the morning of Saturday 25th at 5°C. Expect the next 14 days remain predominantly dry. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 18
May		01:00

WSW
WSW

 4 / 8 mph 47 / 46°F 99% 1012 mb
Low level cloud: 26%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

W
W

 3 / 7 mph 46 / 46°F 98% 1013 mb
Low level cloud: 43%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

 4 / 4 mph 58 / 56°F 90% 1014 mb
Low level cloud: 73%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 4 / 5 mph 75 / 76°F 53% 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

WSW
WSW

 7 / 8 mph 82 / 80°F 42% 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

 7 / 8 mph 77 / 77°F 48% 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
19:00

SW
SW

 5 / 9 mph 58 / 56°F 80% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 11%
Most Significant Cloud Type: high
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SW
SW

 3 / 7 mph 47 / 45°F 96% 1014 mb
Low level cloud: 1%
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
Sun 19
May		19:00

WSW
WSW

 4 / 8 mph 62 / 60°F 52% 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
22:00

W
W

 3 / 7 mph 52 / 52°F 65% 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 20
May		01:00

NW
NW

 1 / 2 mph 48 / 48°F 69% 1013 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
04:00

NNW
NNW

 2 / 4 mph 46 / 46°F 64% 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
07:00

N
N

 2 / 2 mph 66 / 63°F 42% 1014 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
10:00

NNE
NNE

 8 / 9 mph 78 / 75°F 23% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

 7 / 8 mph 83 / 78°F 25% 1012 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 3%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 7 / 9 mph 79 / 77°F 30% 1012 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
19:00

W
W

 3 / 7 mph 64 / 61°F 52% 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

 4 / 9 mph 54 / 53°F 64% 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
Tue 21
May		01:00

N
N

 4 / 8 mph 52 / 51°F 52% 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

NNE
NNE

 4 / 9 mph 51 / 49°F 35% 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

NNE
NNE

 4 / 6 mph 67 / 65°F 37% 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
10:00

NNE
NNE

 3 / 3 mph 86 / 80°F 18% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 5%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 11 / 12 mph 87 / 82°F 19% 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
16:00

WSW
WSW

 9 / 10 mph 83 / 78°F 23% 1013 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
19:00

WSW
WSW

 4 / 9 mph 64 / 62°F 51% 1013 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

 4 / 8 mph 54 / 54°F 70% 1013 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		01:00

W
W

 4 / 8 mph 51 / 50°F 78% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

W
W

 2 / 5 mph 48 / 48°F 85% 1013 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
07:00

WSW
WSW

 3 / 3 mph 63 / 61°F 63% 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

WSW
WSW

 5 / 6 mph 77 / 77°F 43% 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
13:00

W
W

 8 / 9 mph 86 / 80°F 26% 1010 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

 11 / 13 mph 81 / 78°F 27% 1009 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 30%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

 6 / 13 mph 60 / 58°F 41% 1010 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 46%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WNW
WNW

 6 / 12 mph 51 / 49°F 51% 1011 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 100%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May		01:00

WNW
WNW

 5 / 10 mph 48 / 46°F 54% 1011 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 71%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WNW
WNW

 3 / 6 mph 45 / 44°F 57% 1012 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 92%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WNW
WNW

 3 / 4 mph 63 / 60°F 43% 1012 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 9%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

 4 / 4 mph 78 / 74°F 26% 1011 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 32%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 7 / 8 mph 83 / 77°F 21% 1009 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
16:00

WSW
WSW

 9 / 11 mph 81 / 77°F 27% 1008 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
19:00

WSW
WSW

 5 / 10 mph 63 / 61°F 52% 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

W
W

 4 / 9 mph 51 / 50°F 66% 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
Fri 24
May		01:00

WSW
WSW

 3 / 6 mph 48 / 47°F 77% 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

SSW
SSW

 2 / 3 mph 44 / 44°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
07:00

S
S

 3 / 4 mph 59 / 58°F 66% 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

S
S

 4 / 5 mph 75 / 76°F 43% 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

 9 / 11 mph 80 / 78°F 35% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 7 / 8 mph 75 / 76°F 43% 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
19:00

SSW
SSW

 4 / 8 mph 59 / 57°F 71% 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
22:00

WSW
WSW

 4 / 7 mph 45 / 44°F 97% 1014 mb
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 25
May		04:00

WSW
WSW

 2 / 4 mph 43 / 43°F 99% 1011 mb
Low level cloud: 65%
Mid level cloud: 1%
High level cloud: 1%
Most Significant Cloud Type: low
100%
0.0 In
10:00

SSW
SSW

 3 / 4 mph 69 / 69°F 47% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 64%
Most Significant Cloud Type: medium
5%
0.0 In
16:00

SW
SW

 9 / 10 mph 76 / 77°F 43% 1011 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 4%
Most Significant Cloud Type: medium
4%
0.0 In
22:00

W
W

 4 / 8 mph 44 / 43°F 95% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 26
May		04:00

WNW
WNW

 2 / 4 mph 45 / 45°F 96% 1017 mb
Low level cloud: 4%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
5%
0.0 In
10:00

SW
SW

 2 / 3 mph 76 / 77°F 42% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
0.0 In
16:00

WSW
WSW

 8 / 9 mph 76 / 77°F 43% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
22:00

W
W

 4 / 8 mph 47 / 46°F 83% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Mon 27
May		04:00

W
W

 3 / 6 mph 43 / 43°F 94% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 8%
Most Significant Cloud Type: high
8%
0.0 In
10:00

SW
SW

 3 / 3 mph 79 / 78°F 36% 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

SW
SW

 7 / 8 mph 77 / 78°F 40% 1015 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
22:00

WSW
WSW

 3 / 6 mph 53 / 53°F 78% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Tue 28
May		04:00

W
W

 3 / 6 mph 45 / 45°F 94% 1018 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
10:00

SW
SW

 3 / 4 mph 84 / 82°F 33% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
0.0 In
16:00

W
W

 13 / 15 mph 83 / 80°F 22% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
22:00

W
W

 4 / 9 mph 52 / 50°F 67% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Wed 29
May		04:00

WNW
WNW

 4 / 7 mph 47 / 46°F 89% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

WSW
WSW

 5 / 5 mph 79 / 78°F 28% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 58%
Most Significant Cloud Type: high
57%
0.0 In
16:00

SW
SW

 7 / 8 mph 85 / 83°F 35% 1012 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 4%
Most Significant Cloud Type: high
3%
0.0 In
22:00

W
W

 6 / 12 mph 50 / 48°F 72% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Thu 30
May		04:00

NNW
NNW

 1 / 3 mph 57 / 57°F 77% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

W
W

 10 / 12 mph 74 / 76°F 36% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
16:00

WSW
WSW

 7 / 8 mph 90 / 88°F 29% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 96%
Most Significant Cloud Type: high
96%
0.0 In
22:00

NW
NW

 6 / 13 mph 43 / 40°F 60% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
1%
0.0 In
Fri 31
May		04:00

SW
SW

 1 / 2 mph 56 / 56°F 69% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 97%
Most Significant Cloud Type: high
96%
0.0 In
10:00

W
W

 5 / 6 mph 70 / 70°F 19% 1020 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

 7 / 8 mph 93 / 92°F 29% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 22%
Most Significant Cloud Type: high
22%
0.0 In
22:00

NW
NW

 6 / 12 mph 48 / 46°F 69% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
1%
0.0 In
Sat 01
Jun		04:00

W
W

 2 / 4 mph 57 / 59°F 71% 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

W
W

 3 / 4 mph 81 / 78°F 22% 1020 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

 7 / 9 mph 93 / 91°F 24% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
22:00

WNW
WNW

 4 / 9 mph 51 / 50°F 63% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
1%
0.0 In
Sun 02
Jun		04:00

WSW
WSW

 2 / 5 mph 52 / 53°F 88% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

SW
SW

 3 / 4 mph 81 / 79°F 30% 1016 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 9%
Most Significant Cloud Type: medium
5%
0.0 In
16:00

WSW
WSW

 9 / 11 mph 94 / 91°F 17% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
22:00

WNW
WNW

 4 / 8 mph 57 / 57°F 66% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 22%
Most Significant Cloud Type: high
21%
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