Saint Helena, CA

8:31 AM PDT on July 22, 2014 (GMT -0700)
RAWS CALFIRE PORTABLE 14 CA US (MTR110) Elev 279 ft | 38.55 °N, 122.51 °W | Change Station

Current weather conditions updated 2 days ago

Partly Cloudy
Partly Cloudy
61 °F
Feels Like 61 °F
N
7
Wind Variable Wind from WSW
Gusts 9 mph

Today is forecast to be Much Warmer than yesterday.

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
6:03 AM 8:29 PM
Waning Crescent, 16% visible
Pressure 30.04 in
Visibility 10.0 miles
Clouds Mostly Cloudy 1000 ft
Mostly Cloudy 12000 ft
Dew Point 57 °F
Humidity 90%
Rainfall 0.00 in
Snow Depth Not available.
UV 1 out of 12
Pollen 5.00 out of 12
Air Quality Not available.
Flu Activity Local Activity
METAR KSTS 221453Z 00000KT 10SM BKN010 BKN120 16/14 A3006 RMK AO2 RAB07E50 SLP173 P0000 60000 T01610144 53010

More Conditions Fewer Conditions

Pressure 30.04 in
Visibility 10.0 miles
Clouds Mostly Cloudy 1000 ft
Mostly Cloudy 12000 ft
Dew Point 57 °F
Humidity 90%
Rainfall 0.00 in
Snow Depth Not available.
UV 1 out of 12
Pollen 5.00 out of 12
Air Quality Not available.
Flu Activity Local Activity
METAR KSTS 221453Z 00000KT 10SM BKN010 BKN120 16/14 A3006 RMK AO2 RAB07E50 SLP173 P0000 60000 T01610144 53010

More Conditions Fewer Conditions

10-Day Weather Forecast

LIGHTNING

Thunderstorms are forecast for your area. Cloud conditions might be right for producing strikes in the next few days, though lightning itself cannot be forecasted.

Lightning is a visible electrical discharge produced by a thunderstorm, based on the build up of oppositely charged particles within a cloud and from cloud to ground.

Know how to stay safe in a lightning storm.

Check out these Lightning WunderPhotos!

Almanac

Astronomy

Jul. 22, 2014 Rise Set
Actual Time 6:03 AM PDT 8:29 PM PDT
Civil Twilight 5:33 AM PDT 8:59 PM PDT
Nautical Twilight 4:55 AM PDT 9:36 PM PDT
Astronomical Twilight 4:13 AM PDT 10:18 PM PDT
Moon 2:40 AM PDT 5:11 PM PDT
Length of Visible Light 15h 26m
Length of Day
14h 25m
Tomorrow will be 1m 35s shorter.
Waning Crescent, 16% of the Moon is Illuminated
Today
Waning Crescent
Jul 26
New
Aug 3
First Quarter
Aug 10
Full
Aug 17
Last Quarter

Today's Extremes

State Highs State Lows

Community

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WunderBlogs® & News

By Dr. Jeff Masters
Director of Meteorology, Weather Underground
By Kari Strenfel
Meteorologist, Weather Underground
By Christopher C. Burt
Weather Historian, Weather Underground
July 20, 2014
July 20, 2014
July 20, 2014

Nearby

Air Quality

  Air Quality AQ Index Pollutant
Tuesday Good
PM2.5
Wednesday Good
PM2.5
Thursday Moderate
PM2.5
Friday Moderate
PM2.5
Saturday Moderate
PM2.5

Snow Depth

Station Depth Elevation
CSS Lab 3 in 6900 ft
Squaw Valley 0 in 8200 ft
Echo Peak 1 in 7800 ft
Fallen Leaf 0 in 6300 ft
Blue Lakes 0 in 8000 ft

Earthquake Activity

City Distance Mag. Time & Date
Gilroy, California 123 miles 2.8 12:30 PM PDT
2014-07-16
Gilroy, California 122 miles 3.3 2:10 PM PDT
2014-07-15
Gilroy, California 122 miles 3.2 2:09 PM PDT
2014-07-15
Minimum magnitude displayed is 2.5.

Coastal Water Temperatures

Place Temperature
San Francisco, CA 64.0 °F
Richmond, CA 66.0 °F
Port Chicago, CA 69.1 °F

Nearby Weather Stations

Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type
Downtown Saint Helena, Saint Helena, CA 62.3 °F - 58 °F 87% SW  at  0.0 mph 0.01 in / hr 248 ft 8:31 AM PDT Rapid Fire
Mixed vineyard and homes, Saint Helena, CA 61.2 °F - 56 °F 84% WNW  at  0.0 mph - / hr 263 ft 8:29 AM PDT Normal
ST. HELENA, Napa County, CA 47.0 °F 47 °F - - North  at  - - / hr 1614 ft 7:48 AM PDT Normal
HADS ANGWIN PACIFIC UNION COLLEGE AT CA, Angwin, CA 55 °F - - - North  at  - 0.00 in / hr 1712 ft 7:00 AM PDT MADIS
Calistoga, Calistoga, CA 60.3 °F - 57 °F 88% SSE  at  0.0 mph 0.00 in / hr 367 ft 8:13 AM PDT Rapid Fire
Las Posadas, Angwin, CA 56.5 °F - 55 °F 96% NE  at  4.0 mph 0.00 in / hr 1706 ft 8:31 AM PDT Rapid Fire
Sharp Rd Ranch, Calistoga, CA 56.3 °F - 54 °F 96% NNW  at  0.0 mph 0.00 in / hr 1112 ft 8:31 AM PDT Rapid Fire
APRSWXNET Calistoga CA , Calistoga, CA 57 °F - 56 °F 95% WSW  at  1 mph 0.00 in / hr 902 ft 7:52 AM PDT MADIS
Pope Valley, CA 63.5 °F - 58 °F 82% North  at  0.0 mph 0.00 in / hr 896 ft 8:31 AM PDT Rapid Fire
Calistoga, Calistoga, CA 53.6 °F - 53 °F 97% WSW  at  1.1 mph - / hr 925 ft 8:29 AM PDT Normal
Calistoga at Mountain Home Ranch Rd, Calistoga, CA 57.5 °F - 56 °F 94% WSW  at  0.0 mph 0.00 in / hr 915 ft 8:23 AM PDT Normal
APRSWXNET Calistoga CA , Calistoga, CA 56 °F - 54 °F 93% ENE  at  0 mph 0.00 in / hr 1079 ft 7:59 AM PDT MADIS
Aetna Springs, Pope Valley, CA 61.2 °F - 55 °F 81% NE  at  0.0 mph 0.00 in / hr 781 ft 8:31 AM PDT Rapid Fire
Yerba Buena Road, Santa Rosa, CA 60.1 °F - 58 °F 91% West  at  0.0 mph 0.00 in / hr 466 ft 8:29 AM PDT Normal
Los Alamos Rd, Santa Rosa, CA 58.8 °F - 57 °F 94% SSE  at  0.0 mph 0.00 in / hr 420 ft 8:30 AM PDT Normal
APRSWXNET Santa Rosa CA , Kenwood, CA 60 °F - 58 °F 93% ENE  at  0 mph 0.00 in / hr 269 ft 8:04 AM PDT MADIS
Mt. Jacqueline, Santa Rosa, CA 59.0 °F - 58 °F 96% WSW  at  0.0 mph - / hr 591 ft 8:28 AM PDT Normal
APRSWXNET Calistoga CA , Santa Rosa, CA 57 °F - 56 °F 97% WNW  at  0 mph 0.00 in / hr 1099 ft 8:01 AM PDT MADIS
Kenwood, Santa Rosa, CA 59.6 °F - 57 °F 90% West  at  0.0 mph - / hr 415 ft 8:26 AM PDT Normal
Skyhawk, Santa Rosa, CA 59.1 °F - 58 °F 95% SE  at  0.0 mph 0.00 in / hr 377 ft 7:31 AM PDT Rapid Fire
Kenwood Fire, Kenwood, CA 59.6 °F - 57 °F 91% WNW  at  0.0 mph 0.00 in / hr 415 ft 8:31 AM PDT Normal
APRSWXNET Santa Rosa CA , Santa Rosa, CA 57 °F - 56 °F 96% NW  at  0 mph 0.00 in / hr 759 ft 7:52 AM PDT MADIS
Rincon Valley, Santa Rosa, CA 60.4 °F - 58 °F 92% ENE  at  0.9 mph 0.00 in / hr 292 ft 8:31 AM PDT Rapid Fire
APRSWXNET Santa Rosa CA , Santa Rosa, CA 56 °F - 55 °F 98% SW  at  1 mph 0.00 in / hr 1246 ft 7:59 AM PDT MADIS
El Rancho Near Ananndale State Park, Kenwood, CA 59.4 °F - 57 °F 93% WNW  at  0.0 mph 0.00 in / hr 636 ft 8:31 AM PDT Normal
Oakville, Oakville, CA 61.0 °F - 58 °F 88% West  at  0.0 mph 0.01 in / hr 938 ft 8:26 AM PDT Normal
Fountaingrove, Santa Rosa, CA 58.1 °F - 57 °F 97% NNW  at  0.0 mph 0.00 in / hr 748 ft 8:30 AM PDT Normal
Annadel Heights, Santa Rosa, CA 62.1 °F - 58 °F 88% East  at  0.9 mph 0.00 in / hr 340 ft 8:31 AM PDT Rapid Fire
Oakville, CA 64.8 °F - 58 °F 79% East  at  3.0 mph 0.00 in / hr 190 ft 8:22 AM PDT Normal
APRSWXNET Santa Rosa CA , Santa Rosa, CA 60 °F - 57 °F 91% South  at  0 mph 0.00 in / hr 541 ft 7:51 AM PDT MADIS
Bennett Valley - Woodside, Santa Rosa, CA 59.2 °F - 57 °F 92% South  at  2.0 mph 0.00 in / hr 614 ft 8:31 AM PDT Rapid Fire
Mt Veeder, Napa, CA 59.0 °F - 45 °F 59% East  at  0.0 mph 0.00 in / hr 1320 ft 8:31 AM PDT Rapid Fire
Yountville, CA 64.5 °F - 59 °F 81% SE  at  0.0 mph 0.00 in / hr 161 ft 8:25 AM PDT Normal
Berryessa Estates, Pope Valley, CA 64.7 °F - 56 °F 74% East  at  0.0 mph 0.00 in / hr 500 ft 8:30 AM PDT Normal
Yountville Deli (Washington St), Yountville, CA 65.1 °F - 60 °F 85% SW  at  1.2 mph 0.00 in / hr 98 ft 8:31 AM PDT Rapid Fire
Edgewood, Angwin, CA 55.7 °F - 40 °F 55% North  at  0.0 mph 0.00 in / hr 1766 ft 8:31 AM PDT Rapid Fire
ANGWIN, Angwin, CA 59.0 °F - - - North  at  - - / hr 1820 ft 8:30 AM PDT Normal
Spring Mountain Viticultural District, Saint Helena, CA 56.3 °F - 55 °F 94% West  at  0.0 mph - / hr 2001 ft 8:17 AM PDT Normal
Spring Mt, Saint Helena, CA 54.1 °F - 53 °F 97% WNW  at  0.0 mph 0.00 in / hr 2326 ft 8:31 AM PDT Rapid Fire
RAWS ATLAS PEAK CA, Napa, CA 58 °F - 58 °F 99% SW  at  10 mph 0.00 in / hr 1934 ft 7:29 AM PDT MADIS

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