Heavy rain and thunderstorms from the central Gulf Coast to Southeast U.S. early this week

Thunderstorms with heavy rain are expected from eastern TX across the Lower Miss. Valley to the Southeast U.S. on Monday. This rain could lead to flash flooding. Some of the thunderstorms could be severe in this area, producing damaging wind and tornadoes. Meanwhile, heavy rain will also spread into the Northwest U.S., with heavy snow in the higher elevations of the Cascades and northern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

DW9961 Petaluma (D9961)

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

NA

41°F

5°C

Humidity 96%
Wind Speed NA
Barometer 30.08 in
Dewpoint 40°F (4°C)
Visibility NA
Last update 05 Dec 7:40 am PST
Extended Forecast for

4 Miles SSW Saint Helena CA

  • Today

    Today: Mostly sunny, with a high near 50. Northeast wind 5 to 9 mph becoming light and variable  in the afternoon.

    Mostly Sunny

    High: 50 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 39. North northeast wind around 5 mph becoming calm  after midnight.

    Partly Cloudy

    Low: 39 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. West northwest wind around 15 mph, with gusts as high as 20 mph.

    Mostly Sunny

    High: 48 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 39. West northwest wind 8 to 10 mph becoming north northeast in the evening.

    Partly Cloudy

    Low: 39 °F

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. Northeast wind around 9 mph.

    Partly Sunny

    High: 46 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 44. New precipitation amounts between a tenth and quarter of an inch possible.

    Chance Rain

    Low: 44 °F

  • Thursday

    Thursday: Rain likely.  Cloudy, with a high near 50. Chance of precipitation is 70%.

    Rain Likely

    High: 50 °F

  • Thursday
    Night

    Thursday Night: Rain likely.  Cloudy, with a low around 50.

    Rain Likely

    Low: 50 °F

  • Friday

    Friday: A chance of rain.  Mostly cloudy, with a high near 52.

    Chance Rain

    High: 52 °F

Detailed Forecast

Today
Mostly sunny, with a high near 50. Northeast wind 5 to 9 mph becoming light and variable in the afternoon.
Tonight
Partly cloudy, with a low around 39. North northeast wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 48. West northwest wind around 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 39. West northwest wind 8 to 10 mph becoming north northeast in the evening.
Wednesday
Partly sunny, with a high near 46. Northeast wind around 9 mph.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely. Cloudy, with a high near 50. Chance of precipitation is 70%.
Thursday Night
Rain likely. Cloudy, with a low around 50.
Friday
A chance of rain. Mostly cloudy, with a high near 52.
Friday Night
A chance of rain. Mostly cloudy, with a low around 46.
Saturday
A chance of rain. Partly sunny, with a high near 50.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Mostly cloudy, with a high near 50.
Click Map For Forecast
Point Forecast:
4 Miles SSW Saint Helena CA
 38.44°N 122.5°W (Elev. 1398 ft)
7:40 am PST Dec 5, 2016
7am PST Dec 5, 2016-6pm PST Dec 11, 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