Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

haze

49°F

9°C

Humidity 83%
Wind Speed SSW 3 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 07 Dec 02:53 PM PST
Extended Forecast for

Calistoga CA

  • Tonight

    Tonight: Patchy dense fog after 7pm.  Otherwise, mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Dense
    Fog

  • Monday

    Monday: Patchy dense fog before 11am.  Otherwise, sunny, with a high near 62. Calm wind.

    High: 62 °F

    Patchy Dense
    Fog then
    Sunny

  • Monday Night

    Monday Night: Patchy fog.  Otherwise, mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am.  Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog between 9pm and 1am.  Otherwise, mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 11am.  Otherwise, sunny, with a high near 68.

    High: 68 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy dense fog after 7pm. Otherwise, mostly clear, with a low around 43. Calm wind.
Monday
Patchy dense fog before 11am. Otherwise, sunny, with a high near 62. Calm wind.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 44. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, sunny, with a high near 64. Calm wind.
Tuesday Night
Patchy fog between 9pm and 1am. Otherwise, mostly clear, with a low around 46. Calm wind.
Wednesday
Patchy fog before 11am. Otherwise, sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Calistoga CA
 38.58°N 122.59°W (Elev. 525 ft)
12:41 pm PST Dec 7, 2025
3pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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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