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      Elev 3400 ft, 41.298 °N 122.798 °W

      Callahan, CA

      Callahan Station74°
      Updated: 3:43 PM PDT on September 17, 2026 (GMT -7)
      just now
      73°
      44°
      74
      Feels Like 73
      Partly Cloudy
      N
      2
      Higher temperature is expected tomorrow
      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
        Tonight
        Fri 09/18
        Low 45°f
         38% Precip. / 0.01 in
        A few showers early, then clear overnight. Low around 45F. Winds light and variable. Chance of rain 40%.
        Tomorrow
        Sat 09/19
        High 80°f
         5% Precip. / 0 in
        Sunny skies. High around 80F. Winds N at 5 to 10 mph.
        Tomorrow night
        Sat 09/19
        Low 45°f
         1% Precip. / 0 in
        Clear skies. Low around 45F. Winds light and variable.
        Hourly Forecast
        Now
        72°
        4PM
        71°
        5PM
        70°
        6PM
        33%
        67°
        7PM
        38%
        64°
        7:16PM
        Sunset
        8PM
        32%
        61°
        9PM
        58°
        10PM
        56°
        11PM
        55°
        12AM
        54°
        1AM
        53°
        2AM
        51°
        3AM
        50°
        4AM
        49°
        5AM
        48°
        6AM
        47°
        6:54AM
        Sunrise
        7AM
        46°
        8AM
        49°
        9AM
        55°
        10AM
        60°
        11AM
        65°
        12PM
        70°
        1PM
        73°
        2PM
        76°
        3PM
        78°
        Precipitation
        38%
        Rain possible around 6:15 PM
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        27
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 30.01 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point43°F
        5. Humidity 36%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSIY Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 83°F 91°F 1991
        4. Low 44°F 43°F 27°F 1965
        5. Rain/Snow Depth
        6. Precipitation 0.01 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 82°F 91°F
        4. Low 44°F 43°F 25°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:53 AM 7:16 PM
        3. Civil Twilight 6:26 AM 7:44 PM
        4. Nautical Twilight 5:53 AM 8:16PM
        5. Astronomical Twilight 5:20 AM 8:49 PM
        1. Length of Visible Light 13h 18m
        2. Length of Day 12h 22m
        3. Tomorrow will be 2 minutes 44 seconds shorter
        1. Moon 2:02 PM 10:39 PM
        2. Waxing Crescent40% 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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