Search
70°F°C
H75° L54°
21°C°F
H24° L12°
  • Mostly Cloudy 
  • 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
  • | California 
  • | Set default

Ontario

    • Today
    • Mostly Sunny 
    • High75°
    • High24°
    • Low54°
    • Low12°
    • Tomorrow
    • Sunny 
    • High80°
    • High27°
    • Low55°
    • Low13°
    • Saturday
    • Mostly Sunny 
    • High78°
    • High26°
    • Low53°
    • Low12°
    • Sunday
    • Partly Cloudy 
    • High75°
    • High24°
    • Low56°
    • Low13°
    • Monday
    • AM Clouds/PM Sun 
    • High75°
    • High24°
    • Low57°
    • Low14°

 
  • Today: Sunny. High around 75F. Winds W at 10 to 15 mph.
  • Tonight: Generally clear. Low 54F. Winds WSW at 5 to 10 mph.
  • Tomorrow: Mainly sunny. High near 80F. Winds SW at 10 to 20 mph.
  • Tomorrow night: A few clouds overnight. Low around 55F. Winds WSW at 5 to 10 mph.
  • Saturday: Mostly sunny. Highs in the mid 70s and lows in the low 50s.
  • Sunday: Mix of sun and clouds. Highs in the mid 70s and lows in the mid 50s.
  • Monday: Morning clouds followed by afternoon sun. Highs in the upper 70s and lows in the upper 50s.
      • Sunrise
      • 05:42
      •  
      • Sunset
      • 19:49
      •  
      • Feels Like
      • 68°F20°C
      •  
      • Humidity
      • 42%
      •  
      • Visibility
      • 1016.09
      • mikm
      • Dewpoint
      • 46
      •  
      • UV Index
      • 6
      •  
      • Wind
      • W
      • 6 mph9.66 km/h
      • UV Description
      • High
      •  
      • Barometer
      • 29.91,012.53
      • inmb and steady
    PrecipitationTemperature
    Temperature data not available now
    Temperature data not available now
    Precipitation data not available now
    Precipitation data not available now
    68,69,69,74,77,82,89,89,87,80,73,68,
    20,21,21,23,25,28,32,32,31,27,23,20,
    42,44,45,47,51,55,59,59,58,53,45,41,
    6,7,7,8,11,13,15,15,14,12,7,5,
    4.02,4.05,3.45,0.73,0.25,0.05,0,0.13,0.29,0.66,1.29,2.04,
    10.21,10.29,8.76,1.85,0.64,0.13,0,0.33,0.74,1.68,3.28,5.18,
    Go
    Go

    Ontario Weather Forecasts

     | Last Updated 12:53 PDT
     
      Locations you search on will be displayed here for quick access
     

    Featured Forecasts at The Weather Channel®

    Weather News

    More News »
     

    More From The Weather Channel®