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December 10th, 2025 :: 12:15 pm PST   

Local Weather Report for
Ontario
California, United States

 Current Ontario Weather Conditions Updated December 10th at 10:53 am 
Temperature:75°F Dew Point:34°F
Barometer:30.06 inHg Wind:N 6 Mph
Humidity:22.0% Visibility:0M
 
 Ontario Weather Forecast Summary  
 
Today
Dec 10th
Thursday
Dec 11th
Friday
Dec 12th
Saturday
Dec 13th
Sunday
Dec 14th
Sunny Sunny Cloudy Cloudy Cloudy
81°F
79°F
64°F
77°F
63°F
74°F
62°F
75°F
62°F
 
 Ontario Detailed Weather Forecast  
 
Wednesday, December 10th, 2025
Afternoon Temperature: 75°F
Sunny.
Evening Temperature: 68°F
Clear.
Thursday, December 11th, 2025
Overnight Temperature: 64°F
Clear.
Morning Temperature: 76°F
Sunny.
Afternoon Temperature: 74°F
Sunny.
Evening Temperature: 66°F
Clear.
Friday, December 12th, 2025
Overnight Temperature: 63°F
Clear.
Morning Temperature: 74°F
Sunny.
Afternoon Temperature: 72°F
A mix of cloud and sun.
Evening Temperature: 66°F
Cloudy.
Saturday, December 13th, 2025
Overnight Temperature: 63°F
Cloudy.
Morning Temperature: 72°F
Cloudy.
Afternoon Temperature: 70°F
Cloudy.
Evening Temperature: 65°F
Cloudy.
Sunday, December 14th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 72°F
Sunny with cloudy periods.
Afternoon Temperature: 70°F
Sunny.
Evening Temperature: 64°F
Clear with cloudy periods.
Monday, December 15th, 2025
Overnight Temperature: 61°F
A mix of cloudy and clear skies.
Morning Temperature: 72°F
Sunny.
Afternoon Temperature: 70°F
Cloudy.
Evening Temperature: 65°F
Cloudy.
Tuesday, December 16th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 72°F
Sunny.
Afternoon Temperature: 71°F
A mix of sun and cloud.
Evening Temperature: 65°F
A mix of clear and cloudy skies.
Wednesday, December 17th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 73°F
Cloudy.
Afternoon Temperature: 72°F
Sunny.
Evening Temperature: 65°F
A mix of cloudy and clear skies.
Thursday, December 18th, 2025
Overnight Temperature: 63°F
Clear.
Morning Temperature: 75°F
Cloudy.
Afternoon Temperature: 75°F
Sunny.
Evening Temperature: 67°F
Clear.





 

  [ Local Weather Report ]
Rancho Cucamonga, CA 
10:53 AM  75°F
 
 
Upland, CA 
 
Chino, CA 
10:53 AM  75°F
 
 
Montclair, CA 
 
Claremont, CA 
10:47 AM  77°F
 
 
Fontana, CA 
 
Norco, CA 
10:56 AM  77°F
 
 
Pomona, CA 
10:47 AM  77°F
 
 
La Verne Bracket, CA 
10:47 AM  77°F
 
 
La Verne, CA 
10:47 AM  77°F
 

 
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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