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Heavy Snow from the Wasatch to the Upper Midwest through Friday; Severe storms for Ohio Valley on Friday

A strong weather system will bring heavy snow, gusty winds - with blizzard conditions - to a broad area from the Great Basin to the Upper Midwest through Friday creating treacherous travel conditions. Also, strong winds and dry conditions are creating extreme wildfire threats in the southern Plains. Meanwhile, this system will bring a threat of severe thunderstorms to the Ohio Valley on Friday. Read More >

Current conditions at

DW9961 Petaluma (D9961)

Lat: 38.27467°NLon: 122.66383°WElev: 43ft.

NA

53°F

12°C

Humidity 51%
Wind Speed E 6 G 11 MPH
Barometer 30.20 in
Dewpoint 35°F (2°C)
Visibility NA
Last update 24 Feb 2:35 pm PST
Extended Forecast for

4 Miles SSW Saint Helena CA

  • Tonight

    Tonight: A 20 percent chance of showers after 10pm.  Mostly cloudy, with a low around 38. West northwest wind 9 to 14 mph, with gusts as high as 18 mph.

    Slight Chance
    Showers

    Low: 38 °F

  • Saturday

    Saturday: A 30 percent chance of showers.  Mostly cloudy, with a high near 46. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon.  New precipitation amounts between a tenth and quarter of an inch possible.

    Chance
    Showers

    High: 46 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers, mainly before 10pm.  Cloudy, with a low around 40. North northwest wind around 5 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 40 °F

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 10am.  Cloudy, with a high near 48. West southwest wind 6 to 13 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    High: 48 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 40. West wind around 11 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 40 °F

  • Monday

    Monday: A 20 percent chance of showers.  Partly sunny, with a high near 48. New precipitation amounts of less than a tenth of an inch possible.

    Slight Chance
    Showers

    High: 48 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 40.

    Slight Chance
    Showers

    Low: 40 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51.

    Mostly Sunny

    High: 51 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 41.

    Partly Cloudy

    Low: 41 °F

Detailed Forecast

Tonight
A 20 percent chance of showers after 10pm. Mostly cloudy, with a low around 38. West northwest wind 9 to 14 mph, with gusts as high as 18 mph.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 46. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 40 percent chance of showers, mainly before 10pm. Cloudy, with a low around 40. North northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 30 percent chance of showers, mainly after 10am. Cloudy, with a high near 48. West southwest wind 6 to 13 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 40. West wind around 11 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 48. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 59.
Click Map For Forecast
Point Forecast:
4 Miles SSW Saint Helena CA
 38.44°N 122.5°W (Elev. 1398 ft)
1:17 pm PST Feb 24, 2017
3pm PST Feb 24, 2017-6pm PST Mar 3, 2017
 
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