Cool and dry for much of the Central Plains and Rockies. Showers over the Great Lakes and Ohio Valley.

Unsettled weather conditions are likely across portions of the Great Lakes and Ohio Valley, with scattered to numerous showers. Expect cool and mostly dry conditions across much of the central U.S. and extending westward towards the Rocky Mountains. A few showers will be possible over the Pacific Northwest. Showers will also be possible over mountainous areas of Arizona and New Mexico. Read More >

Hazardous Weather Conditions

Current conditions at

DW9961 Petaluma (D9961)

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

NA

52°F

11°C

Humidity 93%
Wind Speed NE 1 G 4 MPH
Barometer 29.84 in
Dewpoint 50°F (10°C)
Visibility NA
Last update 28 Sep 12:16 am PDT
Extended Forecast for

4 Miles SSW Saint Helena CA

  • Overnight

    Overnight: Clear, with a low around 62. West northwest wind around 6 mph.

    Clear

    Low: 62 °F

  • Wednesday

    Wednesday: Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    Sunny

    High: 81 °F

  • Wednesday
    Night

    Wednesday Night: Clear, with a low around 56. West wind 6 to 11 mph.

    Clear

    Low: 56 °F

  • Thursday

    Thursday: Sunny, with a high near 72. West southwest wind 5 to 7 mph.

    Sunny

    High: 72 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 52. West wind 8 to 13 mph.

    Mostly Clear

    Low: 52 °F

  • Friday

    Friday: Sunny, with a high near 69.

    Sunny

    High: 69 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 49.

    Mostly Clear

    Low: 49 °F

  • Saturday

    Saturday: Sunny, with a high near 69.

    Sunny

    High: 69 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 47.

    Partly Cloudy

    Low: 47 °F

Detailed Forecast

Overnight
Clear, with a low around 62. West northwest wind around 6 mph.
Wednesday
Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Wednesday Night
Clear, with a low around 56. West wind 6 to 11 mph.
Thursday
Sunny, with a high near 72. West southwest wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 52. West wind 8 to 13 mph.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
A chance of rain, mainly after 11am. Partly sunny, with a high near 68.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 53.
Monday
A chance of rain. Partly sunny, with a high near 71.
Monday Night
A chance of rain. Mostly cloudy, with a low around 54.
Tuesday
A chance of rain. Partly sunny, with a high near 73.
Click Map For Forecast
Point Forecast:
4 Miles SSW Saint Helena CA
 38.44°N 122.5°W (Elev. 1398 ft)
5:37 pm PDT Sep 27, 2016
12am PDT Sep 28, 2016-6pm PDT Oct 3, 2016
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database