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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

DW7094 Mill Valley (D7094)

Lat: 37.91317°NLon: 122.5485°WElev: 204.79ft.

NA

N/A

Humidity NA
Wind Speed NA NA MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Larkspur CA

  • Today

    Today: Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 82. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, increasing clouds, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Mostly cloudy, with a high near 73. Light west southwest wind.

    High: 73 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 88.

    High: 88 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Today
Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 82. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 54. Calm wind.
Sunday
Mostly cloudy, with a high near 73. Light west southwest wind.
Sunday Night
Mostly cloudy, with a low around 54. Calm wind.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 58.
Friday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Larkspur CA
 37.93°N 122.54°W (Elev. 197 ft)
Last Update:
1:26 am PDT Sep 19, 2026
Forecast Valid:
5am PDT Sep 19, 2026-6pm PDT Sep 25, 2026
 
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Additional Resources

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Chance of Precipitation