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

DW7094 Mill Valley (D7094)

Lat: 37.91333°NLon: 122.54833°WElev: 190.0ft.

NA

N/A

Humidity NA
Wind Speed NA NA MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Larkspur CA

  • Today

    Today: Patchy fog before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 57. Calm wind becoming north northeast around 5 mph.

    High: 57 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy dense fog between 1am and 5am.  Otherwise, mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear
    then Patchy
    Dense Fog

  • Wednesday

    Wednesday: Patchy dense fog before 9am.  Otherwise, mostly sunny, with a high near 58. North northeast wind 3 to 5 mph.

    High: 58 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 64. North northeast wind 3 to 5 mph.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Thursday Night

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

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 57. Calm wind becoming north northeast around 5 mph.
Tonight
Patchy dense fog between 1am and 5am. Otherwise, mostly clear, with a low around 45. Calm wind.
Wednesday
Patchy dense fog before 9am. Otherwise, mostly sunny, with a high near 58. North northeast wind 3 to 5 mph.
Wednesday Night
Mostly clear, with a low around 46. Calm wind.
Thursday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 64. North northeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 45.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 46.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 62.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 48.
Monday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Larkspur CA
 37.96°N 122.52°W (Elev. 52 ft)
2:42 am PST Dec 9, 2025
4am 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