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      Coastal Flood Advisory
      until 5:00 PM PDT
      Elev 20 ft, 37.905 °N 122.522 °W

      Mill Valley, CA

      Horse Hill Station52°
      Updated: 7:57 AM PDT on September 30, 2026 (GMT -7)
      9 minutes ago
      79°
      53°
      52
      Feels Like 52
      Fair
      N
      0
      Lower temperature is expected today
      Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Thu 10/01
        High 79°f
         2% Precip. / 0 in
        Abundant sunshine. High 79F. Winds SSE at 5 to 10 mph.
        Tonight
        Thu 10/01
        Low 51°f
         20% Precip. / 0 in
        Mainly clear. Low 51F. Winds light and variable.
        Tomorrow
        Fri 10/02
        High 74°f52°f
         20% Precip. / 0 in
        Areas of fog early, becoming mostly sunny in the afternoon. High 74F. Winds S at 5 to 10 mph.
        Hourly Forecast
        Now
        54°
        8AM
        54°
        9AM
        58°
        10AM
        62°
        11AM
        67°
        12PM
        71°
        1PM
        73°
        2PM
        75°
        3PM
        77°
        4PM
        78°
        5PM
        76°
        6PM
        73°
        6:54PM
        Sunset
        7PM
        68°
        8PM
        64°
        9PM
        61°
        10PM
        59°
        11PM
        57°
        12AM
        56°
        1AM
        55°
        2AM
        55°
        3AM
        54°
        4AM
        53°
        5AM
        53°
        6AM
        53°
        7AM
        20%
        52°
        Precipitation
        20%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        35
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.8 in
        2. Visibility 9 miles
        3. Clouds Partly Cloudy
        4. Dew Point53°F
        5. Humidity 96%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KJMC Station History
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 79°F 80°F 95°F 1966
        4. Low 53°F 52°F 38°F 1929
        5. Rain/Snow Depth
        6. Precipitation 0 in 2.9 in -
        7. Snow 0 in - in -
        Almanac for October 1, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 80°F 99°F
        4. Low 51°F 52°F 35°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:05 AM 6:54 PM
        3. Civil Twilight 6:38 AM 7:20 PM
        4. Nautical Twilight 6:08 AM 7:50PM
        5. Astronomical Twilight 5:37 AM 8:21 PM
        1. Length of Visible Light 12h 41m
        2. Length of Day 11h 49m
        3. Tomorrow will be 2 minutes 25 seconds shorter
        1. Moon 9:14 PM 11:47 AM
        2. Waning Gibbous76% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
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