National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

KF6YUA Sebastopol (AR323)

Lat: 38.3803°NLon: 122.8242°WElev: 230.0ft.

NA

36°F

2°C

Humidity 99%
Wind Speed S 0 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 36°F (2°C)
Visibility NA
Last update 12 Jan 08:08 AM PST
Extended Forecast for

Rohnert Park CA

Cold Weather Advisory until January 12, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory until January 12, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Today

    High: 59 °F

    Patchy Frost
    and Patchy
    Dense Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Tuesday

    Tuesday: Sunny, with a high near 62. Light east northeast wind.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, sunny, with a high near 62. Calm wind.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog before 10pm, then patchy fog after 11pm. Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Patchy Fog

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Today
Patchy dense fog before 11am. Patchy frost before 9am. Otherwise, sunny, with a high near 59. Calm wind.
Tonight
Patchy fog. Otherwise, mostly clear, with a low around 37. Calm wind.
Tuesday
Sunny, with a high near 62. Light east northeast wind.
Tuesday Night
Patchy fog. Otherwise, mostly clear, with a low around 39. Calm wind.
Wednesday
Patchy fog before 10am. Otherwise, sunny, with a high near 62. Calm wind.
Wednesday Night
Patchy fog before 10pm, then patchy fog after 11pm. Otherwise, mostly clear, with a low around 42.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rohnert Park CA
 38.34°N 122.7°W (Elev. 98 ft)
Last Update:
12:26 am PST Jan 12, 2026
Forecast Valid:
8am PST Jan 12, 2026-6pm PST Jan 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation