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      Extreme Heat Warning
      until 8:00 PM PDT
      +1 more alert
      Elev 1401 ft, 34.134 °N 117.477 °W

      Fontana, CA

      Westgate Station84°
      Updated: 9:59 AM PDT on September 8, 2026 (GMT -7)
      9 minutes ago
      95°
      72°
      84
      Feels Like 88
      Partly Cloudy
      N
      2
      Higher 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
        Wed 09/09
        High 95°f
         32% Precip. / 0 in
        Scattered clouds with the possibility of an isolated thunderstorm developing this afternoon. High near 95F. Winds SW at 5 to 10 mph. Chance of rain 30%.
        Tonight
        Wed 09/09
        Low 78°f
         15% Precip. / 0 in
        Partly cloudy. A stray shower or thunderstorm is possible. Low 78F. Winds light and variable.
        Tomorrow
        Thu 09/10
        High 101°f78°f
         2% Precip. / 0 in
        Partly cloudy skies. High 101F. Winds W at 5 to 10 mph.
        Hourly Forecast
        Now
        85°
        10AM
        85°
        11AM
        88°
        12PM
        90°
        1PM
        91°
        2PM
        93°
        3PM
        94°
        4PM
        95°
        5PM
        93°
        6PM
        92°
        7PM
        89°
        7:05PM
        Sunset
        8PM
        86°
        9PM
        84°
        10PM
        84°
        11PM
        83°
        12AM
        82°
        1AM
        81°
        2AM
        80°
        3AM
        79°
        4AM
        79°
        5AM
        79°
        6AM
        79°
        6:29AM
        Sunrise
        7AM
        79°
        8AM
        83°
        9AM
        87°
        Precipitation
        15%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        55
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 29.93 in
        2. Visibility 9 miles
        3. Clouds Partly Cloudy
        4. Dew Point64°F
        5. Humidity 49%
        6. Rainfall 0.01 in
        7. Snow Depth 0 in
         KONT Station History
        Almanac for September 8, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 95°F 92°F 109°F 1979
        4. Low 72°F 62°F 51°F 1978
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.01 in -
        7. Snow 0 in - in -
        Almanac for September 9, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 101°F 92°F 112°F
        4. Low 72°F 62°F 51°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:28 AM 7:06 PM
        3. Civil Twilight 6:03 AM 7:31 PM
        4. Nautical Twilight 5:33 AM 8:00PM
        5. Astronomical Twilight 5:02 AM 8:31 PM
        1. Length of Visible Light 13h 28m
        2. Length of Day 12h 37m
        3. Tomorrow will be 2 minutes 4 seconds shorter
        1. Moon 3:40 AM 5:48 PM
        2. Waning Crescent9% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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