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 29.99 in (1015.58 mb)
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Larkspur CA

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 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

  • Saturday Night

    Saturday Night: Patchy fog after 4am. Otherwise, increasing clouds, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Partly sunny, with a high near 74. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 55. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 82. Calm wind becoming south southwest around 5 mph in the afternoon.
Saturday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 55. Calm wind.
Sunday
Partly sunny, with a high near 74. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 55. Calm wind.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Larkspur CA
 37.93°N 122.54°W (Elev. 197 ft)
Last Update:
1:26 pm PDT Sep 18, 2026
Forecast Valid:
9pm PDT Sep 18, 2026-6pm PDT Sep 25, 2026
 
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Additional Resources

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Chance of Precipitation