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December 1st, 2025 :: 1:32 pm PST   

Local Weather Report for
Ontario
California, United States

 Current Ontario Weather Conditions Updated December 1st at 11:53 am 
Mostly Sunny
Temperature:68°F Dew Point:41°F
Barometer:30.04 inHg Wind: 6 Mph
Humidity:37.3% Visibility:0M
 
 Ontario Weather Forecast Summary  
 
Today
Dec 1st
Tuesday
Dec 2nd
Wednesday
Dec 3rd
Thursday
Dec 4th
Friday
Dec 5th
Mix of Cloud and Sun Cloudy Mostly Sunny Cloudy Mix of Cloud and Sun
72°F
68°F
56°F
69°F
56°F
68°F
54°F
68°F
54°F
 
 Ontario Detailed Weather Forecast  
 
Monday, December 1st, 2025
Afternoon Temperature: 67°F
A mix of cloud and sun.
Evening Temperature: 60°F
A mix of cloudy and clear skies.
Tuesday, December 2nd, 2025
Overnight Temperature: 57°F
Mostly clear.
Morning Temperature: 66°F
Sunny.
Afternoon Temperature: 63°F
Cloudy.
Evening Temperature: 57°F
Cloudy.
Wednesday, December 3rd, 2025
Overnight Temperature: 56°F
A mix of cloudy and clear skies.
Morning Temperature: 65°F
Sunny. Windy at times.
Afternoon Temperature: 65°F
Sunny. Windy at times.
Evening Temperature: 59°F
Clear. Windy at times.
Thursday, December 4th, 2025
Overnight Temperature: 55°F
Cloudy.
Morning Temperature: 65°F
Sunny with cloudy periods.
Afternoon Temperature: 65°F
Cloudy.
Evening Temperature: 57°F
Clear.
Friday, December 5th, 2025
Overnight Temperature: 55°F
Clear.
Morning Temperature: 65°F
A mix of cloud and sun.
Afternoon Temperature: 64°F
A mix of cloud and sun.
Evening Temperature: 58°F
A mix of cloudy and clear skies.
Saturday, December 6th, 2025
Overnight Temperature: 54°F
Clear.
Morning Temperature: 62°F
Sunny.
Afternoon Temperature: 61°F
Sunny.
Evening Temperature: 57°F
A mix of cloudy and clear skies.
Sunday, December 7th, 2025
Overnight Temperature: 57°F
A mix of cloudy and clear skies.
Morning Temperature: 63°F
A mix of cloud and sun.
Afternoon Temperature: 63°F
Cloudy.
Evening Temperature: 57°F
Clear.
Monday, December 8th, 2025
Overnight Temperature: 54°F
Clear.
Morning Temperature: 66°F
Sunny. Windy at times.
Afternoon Temperature: 65°F
Sunny. Windy at times.
Evening Temperature: 59°F
A mix of cloudy and clear skies.
Tuesday, December 9th, 2025
Overnight Temperature: 57°F
A mix of cloudy and clear skies.
Morning Temperature: 70°F
Sunny.
Afternoon Temperature: 70°F
Sunny.
Evening Temperature: 64°F
Clear.





 

  [ Local Weather Report ]
Rancho Cucamonga, CA 
11:53 AM  68°F
Mostly Sunny
 
Upland, CA 
 
Chino, CA 
11:53 AM  72°F
haze
 
Montclair, CA 
 
Claremont, CA 
 
Fontana, CA 
 
Norco, CA 
11:56 AM  73°F
 
 
Pomona, CA 
 
La Verne Bracket, CA 
 
La Verne, CA 

 
This WeatherCity Weather Forecast for Ontario, California, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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