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      Small Craft Advisory
      until 9:00 PM PDT
      Elev 623 ft, 37.916 °N 122.556 °W

      Mill Valley, CA

      Blithedale Canyon Station68°
      Updated: 2:36 PM PDT on September 16, 2026 (GMT -7)
      6 minutes ago
      65°
      55°
      68
      Feels Like 68
      Partly Cloudy
      N
      15
      Gusts 26 mph
      Similar temperature is expected today
      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 09/17
        High 64°f
         8% Precip. / 0 in
        A mix of clouds and sun. High 64F. Winds W at 10 to 20 mph.
        Tonight
        Thu 09/17
        Low 57°f
         39% Precip. / 0.02 in
        Considerable cloudiness. Occasional rain showers after midnight. Low 57F. Winds SW at 5 to 10 mph. Chance of rain 40%.
        Tomorrow
        Fri 09/18
        High 68°f53°f
         39% Precip. / 0.02 in
        A shower or two around the area in the morning, then partly cloudy in the afternoon. High 68F. Winds SSW at 5 to 10 mph. Chance of rain 40%.
        Hourly Forecast
        Now
        62°
        3PM
        63°
        4PM
        62°
        5PM
        62°
        6PM
        62°
        7PM
        60°
        7:16PM
        Sunset
        8PM
        59°
        9PM
        58°
        10PM
        59°
        11PM
        59°
        12AM
        58°
        1AM
        58°
        2AM
        58°
        3AM
        32%
        58°
        4AM
        39%
        58°
        5AM
        58°
        6AM
        36%
        58°
        6:54AM
        Sunrise
        7AM
        34%
        58°
        8AM
        31%
        59°
        9AM
        39%
        60°
        10AM
        30%
        62°
        11AM
        63°
        12PM
        64°
        1PM
        66°
        2PM
        66°
        Precipitation
        39%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        32
        Good
        UV Index
        6
        High
        Additional Conditions
        1. Pressure 29.96 in
        2. Visibility 9 miles
        3. Clouds Partly Cloudy
        4. Dew Point54°F
        5. Humidity 74%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KJMC Station History
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 82°F 104°F 1913
        4. Low 55°F 53°F 40°F 1936
        5. Rain/Snow Depth
        6. Precipitation 0.02 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 68°F 82°F 98°F
        4. Low 55°F 53°F 40°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:53 AM 7:16 PM
        3. Civil Twilight 6:26 AM 7:42 PM
        4. Nautical Twilight 5:55 AM 8:13PM
        5. Astronomical Twilight 5:24 AM 8:44 PM
        1. Length of Visible Light 13h 15m
        2. Length of Day 12h 23m
        3. Tomorrow will be 2 minutes 26 seconds shorter
        1. Moon 12:48 PM 10:07 PM
        2. Waxing Crescent31% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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