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      Elev 2753 ft, 39.507 °N 121.222 °W

      Challenge, CA

      Challenge Station68°
      Updated: 3:33 PM PDT on September 17, 2026 (GMT -7)
      just now
      70°
      47°
      68
      Feels Like 68
      Sunny
      N
      5
      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 54°f
         2% Precip. / 0 in
        Clear skies. Low 54F. Winds light and variable.
        Tomorrow
        Sat 09/19
        High 78°f
         1% Precip. / 0 in
        Sunny skies. High 78F. Winds WNW at 5 to 10 mph.
        Tomorrow night
        Sat 09/19
        Low 61°f
         1% Precip. / 0 in
        A mostly clear sky. Low 61F. Winds NE at 5 to 10 mph.
        Hourly Forecast
        Now
        69°
        4PM
        69°
        5PM
        69°
        6PM
        67°
        7PM
        63°
        7:09PM
        Sunset
        8PM
        60°
        9PM
        58°
        10PM
        57°
        11PM
        57°
        12AM
        56°
        1AM
        56°
        2AM
        56°
        3AM
        55°
        4AM
        55°
        5AM
        55°
        6AM
        55°
        6:49AM
        Sunrise
        7AM
        55°
        8AM
        57°
        9AM
        62°
        10AM
        66°
        11AM
        69°
        12PM
        72°
        1PM
        74°
        2PM
        75°
        3PM
        76°
        Precipitation
        3%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        29
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 30.06 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point46°F
        5. Humidity 43%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KOVE Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 70°F 80°F 91°F 2025
        4. Low 47°F 48°F 35°F 1955
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 78°F 80°F 93°F
        4. Low 47°F 48°F 31°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:48 AM 7:09 PM
        3. Civil Twilight 6:21 AM 7:36 PM
        4. Nautical Twilight 5:49 AM 8:08PM
        5. Astronomical Twilight 5:17 AM 8:40 PM
        1. Length of Visible Light 13h 15m
        2. Length of Day 12h 21m
        3. Tomorrow will be 2 minutes 33 seconds shorter
        1. Moon 1:48 PM 10:40 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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