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      Wind Advisory
      until 6:00 AM PDT
      +2 more alerts
      Elev 8 ft, 34.405 °N 119.742 °W

      Las Positas, CA

      Campanil Station62°
      Updated: 4:44 AM PDT on September 28, 2026 (GMT -7)
      7 minutes ago
      82°
      56°
      62
      Feels Like 62
      Clear
      N
      1
      Similar 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
        Tue 09/29
        High 82°f
         0% Precip. / 0 in
        Sunny. High 82F. Winds WNW at 10 to 20 mph.
        Tonight
        Tue 09/29
        Low 62°f
         0% Precip. / 0 in
        Clear skies. Low 62F. Winds N at 5 to 10 mph.
        Tomorrow
        Wed 09/30
        High 82°f63°f
         0% Precip. / 0 in
        A mainly sunny sky. High 82F. Winds WSW at 5 to 10 mph.
        Hourly Forecast
        Now
        58°
        5AM
        59°
        6AM
        59°
        6:51AM
        Sunrise
        7AM
        59°
        8AM
        65°
        9AM
        70°
        10AM
        72°
        11AM
        73°
        12PM
        75°
        1PM
        77°
        2PM
        80°
        3PM
        80°
        4PM
        79°
        5PM
        78°
        6PM
        76°
        6:47PM
        Sunset
        7PM
        73°
        8PM
        69°
        9PM
        67°
        10PM
        67°
        11PM
        66°
        12AM
        66°
        1AM
        67°
        2AM
        67°
        3AM
        66°
        4AM
        66°
        Precipitation
        0%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        29
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.82 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point53°F
        5. Humidity 81%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSBA Station History
        Almanac for September 28, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 77°F 101°F 1963
        4. Low 56°F 59°F 34°F 1993
        5. Rain/Snow Depth
        6. Precipitation 0 in 2.9 in -
        7. Snow 0 in 0 in -
        Almanac for September 29, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 77°F 98°F
        4. Low 56°F 58°F 34°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:51 AM 6:46 PM
        3. Civil Twilight 6:26 AM 7:12 PM
        4. Nautical Twilight 5:57 AM 7:41PM
        5. Astronomical Twilight 5:27 AM 8:10 PM
        1. Length of Visible Light 12h 45m
        2. Length of Day 11h 55m
        3. Tomorrow will be 2 minutes 8 seconds shorter
        1. Moon 7:47 PM 9:01 AM
        2. Waning Gibbous92% 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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