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      Elev 1227 ft, 34.089 °N 117.437 °W

      Fontana, CA

      Athol and Sierra Station85°
      Updated: 4:34 PM PDT on September 21, 2026 (GMT -7)
      4 minutes ago
      82°
      62°
      85
      Feels Like 84
      Sunny
      N
      12
      Gusts 18 mph
      Similar 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
        Tue 09/22
        Low 60°f
         7% Precip. / 0 in
        A few passing clouds. Low near 60F. WSW winds at 10 to 15 mph, decreasing to less than 5 mph.
        Tomorrow
        Wed 09/23
        High 86°f
         6% Precip. / 0 in
        Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 86F. Winds SW at 10 to 15 mph.
        Tomorrow night
        Wed 09/23
        Low 64°f
         3% Precip. / 0 in
        Clear skies. Low 64F. Winds WNW at 5 to 10 mph.
        Hourly Forecast
        Now
        83°
        5PM
        82°
        6PM
        79°
        6:47PM
        Sunset
        7PM
        75°
        8PM
        70°
        9PM
        68°
        10PM
        67°
        11PM
        65°
        12AM
        64°
        1AM
        63°
        2AM
        63°
        3AM
        62°
        4AM
        62°
        5AM
        62°
        6AM
        62°
        6:38AM
        Sunrise
        7AM
        61°
        8AM
        62°
        9AM
        65°
        10AM
        68°
        11AM
        72°
        12PM
        75°
        1PM
        79°
        2PM
        82°
        3PM
        84°
        4PM
        85°
        Precipitation
        8%
        Pollen
        None
        Air Quality
        62
        Moderate
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 29.83 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point54°F
        5. Humidity 36%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KRIR Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 90°F 105°F 1974
        4. Low 62°F 61°F 54°F 1982
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.01 in -
        7. Snow 0 in - in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 86°F 90°F 105°F
        4. Low 62°F 61°F 49°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:37 AM 6:47 PM
        3. Civil Twilight 6:12 AM 7:12 PM
        4. Nautical Twilight 5:43 AM 7:41PM
        5. Astronomical Twilight 5:13 AM 8:11 PM
        1. Length of Visible Light 13h 0m
        2. Length of Day 12h 10m
        3. Tomorrow will be 2 minutes 6 seconds shorter
        1. Moon 4:13 PM 1:31 AM
        2. Waxing Gibbous78% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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