Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

MIDDLE PEAK (MDEC1)

Lat: 37.92778°NLon: 122.58722°WElev: 2339.0ft.

NA

53°F

12°C

Humidity 64%
Wind Speed NNW 10 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 08 Dec 11:36 PM PST
Extended Forecast for

Fairfax CA

  • Overnight

    Overnight: Patchy fog.  Otherwise, mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 58. Light east northeast wind.

    High: 58 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog between 4am and 5am.  Otherwise, mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy dense fog before 10am.  Otherwise, mostly sunny, with a high near 58. Light northeast wind.

    High: 58 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Thursday Night

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

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Tuesday
Areas of fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 58. Light east northeast wind.
Tuesday Night
Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 44. Calm wind.
Wednesday
Patchy dense fog before 10am. Otherwise, mostly sunny, with a high near 58. Light northeast wind.
Wednesday Night
Mostly clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 61.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Monday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax CA
 37.99°N 122.58°W (Elev. 276 ft)
12:26 am PST Dec 9, 2025
12am PST Dec 9, 2025-6pm PST Dec 15, 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