My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Extreme Heat Warning
      until 8:00 PM PDT
      Elev 735 ft, 34.007 °N 117.678 °W

      Chino, CA

      Central Ontario Station71°
      Updated: 4:47 AM PDT on October 4, 2026 (GMT -7)
      5 minutes ago
      104°
      71°
      71
      Feels Like 71
      Clear
      N
      4
      Similar 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 104°f
         0% Precip. / 0 in
        Sunny. Hot. High 104F. E winds shifting to SSW at 10 to 15 mph.
        Tonight
        Mon 10/05
        Low 72°f
         0% Precip. / 0 in
        Clear skies. Low 72F. Winds NNW at 5 to 10 mph.
        Tomorrow
        Tue 10/06
        High 104°f73°f
         0% Precip. / 0 in
        A mainly sunny sky. Hot. High 104F. E winds shifting to WNW at 10 to 15 mph.
        Hourly Forecast
        Now
        73°
        5AM
        73°
        6AM
        73°
        6:47AM
        Sunrise
        7AM
        73°
        8AM
        78°
        9AM
        84°
        10AM
        90°
        11AM
        95°
        12PM
        99°
        1PM
        101°
        2PM
        102°
        3PM
        102°
        4PM
        102°
        5PM
        100°
        6PM
        96°
        6:30PM
        Sunset
        7PM
        92°
        8PM
        89°
        9PM
        86°
        10PM
        84°
        11PM
        81°
        12AM
        80°
        1AM
        78°
        2AM
        77°
        3AM
        76°
        4AM
        75°
        Precipitation
        0%
        Pollen
        None
        Air Quality
        29
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.84 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point51°F
        5. Humidity 46%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KCNO Station History
        Almanac for October 4, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 104°F 83°F 105°F 1987
        4. Low 71°F 57°F 38°F 1898
        5. Rain/Snow Depth
        6. Precipitation 0 in 3 in -
        7. Snow 0 in 0 in -
        Almanac for October 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 104°F 83°F 102°F
        4. Low 72°F 56°F 39°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
        Nearby Weather Stations
        Station Location
        Temp
        Windchill
        Heat Index
        Dew Point
        Humidity
        Wind
        Precip.
        Elev.
        Updated
        Loading nearby stations…
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareers
        PWS NetworkWunderMap
        Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
        Level Access
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary