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      Elev 735 ft, 34.007 °N 117.678 °W

      Chino, CA

      Central Ontario Station70°
      Updated: 9:20 AM PDT on September 4, 2026 (GMT -7)
      4 minutes ago
      87°
      59°
      70
      Feels Like 70
      Sunny
      N
      3
      Similar 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
        Sat 09/05
        High 87°f
         1% Precip. / 0 in
        Abundant sunshine. High 87F. Winds SW at 10 to 20 mph.
        Tonight
        Sat 09/05
        Low 60°f
         5% Precip. / 0 in
        Clear skies. Low around 60F. WSW winds shifting to NNW at 10 to 15 mph.
        Tomorrow
        Sun 09/06
        High 91°f69°f
         15% Precip. / 0 in
        Generally sunny despite a few afternoon clouds. A stray shower or thunderstorm is possible. High 91F. E winds shifting to WSW at 10 to 15 mph.
        Hourly Forecast
        Now
        71°
        10AM
        73°
        11AM
        77°
        12PM
        81°
        1PM
        83°
        2PM
        85°
        3PM
        86°
        4PM
        86°
        5PM
        83°
        6PM
        80°
        7PM
        76°
        7:12PM
        Sunset
        8PM
        73°
        9PM
        70°
        10PM
        69°
        11PM
        67°
        12AM
        66°
        1AM
        65°
        2AM
        64°
        3AM
        63°
        4AM
        63°
        5AM
        62°
        6AM
        61°
        6:27AM
        Sunrise
        7AM
        62°
        8AM
        67°
        9AM
        72°
        Precipitation
        6%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        39
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 29.92 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point59°F
        5. Humidity 66%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KCNO Station History
        Almanac for September 4, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 87°F 92°F 108°F 2002
        4. Low 59°F 62°F 45°F 1925
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.6 in -
        7. Snow 0 in 0 in -
        Almanac for September 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 91°F 91°F 109°F
        4. Low 59°F 62°F 41°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:26 AM 7:12 PM
        3. Civil Twilight 6:01 AM 7:37 PM
        4. Nautical Twilight 5:31 AM 8:07PM
        5. Astronomical Twilight 5:00 AM 8:38 PM
        1. Length of Visible Light 13h 36m
        2. Length of Day 12h 45m
        3. Tomorrow will be 2 minutes 3 seconds shorter
        1. Moon - 2:32 PM
        2. Last Quarter50% of the Moon is Illuminated
        Sep 4
        Waning Half Last Qtr
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Precipitation
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