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      Elev 1227 ft, 34.089 °N 117.437 °W

      Fontana, CA

      Athol and Sierra Station73°
      Updated: 6:41 PM PDT on September 21, 2026 (GMT -7)
      7 minutes ago
      84°
      62°
      73
      Feels Like 72
      Sunny
      N
      13
      Gusts 20 mph
      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
        Tue 09/22
        Low 60°f
         7% Precip. / 0 in
        Mainly clear. Low near 60F. WSW winds at 10 to 15 mph, decreasing to less than 5 mph.
        Tomorrow
        Wed 09/23
        High 87°f
         6% Precip. / 0 in
        Partly cloudy skies. High 87F. Winds SW at 10 to 15 mph.
        Tomorrow night
        Wed 09/23
        Low 63°f
         4% Precip. / 0 in
        A mostly clear sky. Low 63F. Winds WNW at 5 to 10 mph.
        Hourly Forecast
        Now
        74°
        6:47PM
        Sunset
        7PM
        73°
        8PM
        70°
        9PM
        68°
        10PM
        66°
        11PM
        65°
        12AM
        64°
        1AM
        64°
        2AM
        63°
        3AM
        63°
        4AM
        62°
        5AM
        62°
        6AM
        62°
        6:38AM
        Sunrise
        7AM
        61°
        8AM
        62°
        9AM
        65°
        10AM
        68°
        11AM
        71°
        12PM
        75°
        1PM
        79°
        2PM
        82°
        3PM
        84°
        4PM
        85°
        5PM
        84°
        6PM
        81°
        Precipitation
        7%
        Pollen
        None
        Air Quality
        56
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.85 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point55°F
        5. Humidity 50%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KRIR Station History
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 90°F 105°F 1974
        4. Low 62°F 61°F 49°F 1978
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.01 in -
        7. Snow 0 in - in -
        Almanac for September 23, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 87°F 89°F 106°F
        4. Low 62°F 61°F 51°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:37 AM 6:46 PM
        3. Civil Twilight 6:12 AM 7:11 PM
        4. Nautical Twilight 5:43 AM 7:40PM
        5. Astronomical Twilight 5:14 AM 8:09 PM
        1. Length of Visible Light 12h 58m
        2. Length of Day 12h 8m
        3. Tomorrow will be 2 minutes 6 seconds shorter
        1. Moon 4:45 PM 2:31 AM
        2. Waxing Gibbous85% 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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