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      Extreme Heat Warning
      until 8:00 PM PDT
      Elev 278 ft, 34.046 °N 117.572 °W

      Ontario, CA

      California Commerce Center Station98°
      Updated: 11:02 AM PDT on October 4, 2026 (GMT -7)
      just now
      101°
      74°
      98
      Feels Like 97
      Sunny
      N
      1
      Lower temperature is expected today
      Wundermap
      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
        Mon 10/05
        High 101°f
         0% Precip. / 0 in
        Abundant sunshine. Hot. High 101F. Winds S at 10 to 15 mph.
        Tonight
        Mon 10/05
        Low 76°f
         0% Precip. / 0 in
        Clear skies. Low 76F. Winds NW at 5 to 10 mph.
        Tomorrow
        Tue 10/06
        High 103°f75°f
         0% Precip. / 0 in
        Sunny. Hot. High 103F. Winds S at 5 to 10 mph.
        Hourly Forecast
        Now
        95°
        12PM
        97°
        1PM
        100°
        2PM
        101°
        3PM
        100°
        4PM
        100°
        5PM
        99°
        6PM
        96°
        6:30PM
        Sunset
        7PM
        92°
        8PM
        90°
        9PM
        87°
        10PM
        85°
        11PM
        83°
        12AM
        82°
        1AM
        80°
        2AM
        80°
        3AM
        79°
        4AM
        77°
        5AM
        77°
        6AM
        77°
        6:48AM
        Sunrise
        7AM
        77°
        8AM
        80°
        9AM
        85°
        10AM
        90°
        11AM
        94°
        Precipitation
        0%
        Pollen
        None
        Air Quality
        19
        Good
        UV Index
        6
        High
        Additional Conditions
        1. Pressure 29.89 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point47°F
        5. Humidity 20%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KONT Station History
        Almanac for October 4, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 101°F 87°F 102°F 1964
        4. Low 74°F 59°F 47°F 1954
        5. Rain/Snow Depth
        6. Precipitation 0 in 0 in -
        7. Snow 0 in - in -
        Almanac for October 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 103°F 86°F 105°F
        4. Low 76°F 58°F 47°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:47 AM 6:30 PM
        3. Civil Twilight 6:22 AM 6:55 PM
        4. Nautical Twilight 5:53 AM 7:24PM
        5. Astronomical Twilight 5:24 AM 7:53 PM
        1. Length of Visible Light 12h 33m
        2. Length of Day 11h 43m
        3. Tomorrow will be 2 minutes 6 seconds shorter
        1. Moon 12:18 AM 3:10 PM
        2. Waning Crescent41% of the Moon is Illuminated
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
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