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      Small Craft Advisory
      until 9:00 PM PDT
      Elev 14 ft, 38.153 °N 121.691 °W

      Rio Vista, CA

      WeatherStationRioVista Station77°
      Updated: 2:02 PM PDT on September 13, 2026 (GMT -7)
      just now
      81°
      57°
      77
      Feels Like 76
      Sunny
      N
      8
      Lower 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
        Mon 09/14
        High 81°f
         0% Precip. / 0 in
        Plentiful sunshine. High 81F. Winds WSW at 10 to 15 mph.
        Tonight
        Mon 09/14
        Low 57°f
         4% Precip. / 0 in
        Clear skies. Low 57F. Winds WSW at 10 to 20 mph.
        Tomorrow
        Tue 09/15
        High 90°f55°f
         4% Precip. / 0 in
        A mainly sunny sky. High near 90F. Winds W at 10 to 20 mph.
        Hourly Forecast
        Now
        78°
        3PM
        79°
        4PM
        80°
        5PM
        79°
        6PM
        79°
        7PM
        74°
        7:17PM
        Sunset
        8PM
        69°
        9PM
        67°
        10PM
        65°
        11PM
        64°
        12AM
        63°
        1AM
        62°
        2AM
        61°
        3AM
        61°
        4AM
        60°
        5AM
        59°
        6AM
        59°
        6:48AM
        Sunrise
        7AM
        58°
        8AM
        62°
        9AM
        68°
        10AM
        74°
        11AM
        78°
        12PM
        82°
        1PM
        85°
        2PM
        87°
        Precipitation
        4%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        39
        Good
        UV Index
        7
        High
        Additional Conditions
        1. Pressure 29.95 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point44°F
        5. Humidity 30%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSUU Station History
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 88°F 106°F 2015
        4. Low 57°F 59°F 43°F 1970
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.3 in -
        7. Snow 0 in 0 in -
        Almanac for September 14, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 90°F 87°F 104°F
        4. Low 57°F 59°F 41°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:46 AM 7:17 PM
        3. Civil Twilight 6:20 AM 7:44 PM
        4. Nautical Twilight 5:49 AM 8:15PM
        5. Astronomical Twilight 5:17 AM 8:47 PM
        1. Length of Visible Light 13h 23m
        2. Length of Day 12h 30m
        3. Tomorrow will be 2 minutes 26 seconds shorter
        1. Moon 9:33 AM 8:23 PM
        2. Waxing Crescent7% 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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