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September 10th, 2025 :: 12:59 pm PDT   

Local Weather Report for
Ontario
California, United States

 Current Ontario Weather Conditions Updated September 10th at 11:53 am 
Overcast
Temperature:24°C Dew Point:12°C
Barometer:101.4 kPa Wind: 10 Km/h
Humidity:47.0% Visibility:0 Km
 
 Ontario Weather Forecast Summary  
 
Today
Sep 10th
Thursday
Sep 11th
Friday
Sep 12th
Saturday
Sep 13th
Sunday
Sep 14th
Mostly Sunny Mostly Sunny Sunny Sunny Sunny
28°C
27°C
19°C
28°C
19°C
30°C
20°C
30°C
21°C
 
 Ontario Detailed Weather Forecast  
 
Wednesday, September 10th, 2025
Afternoon Temperature: 24°C
Sunny. Windy at times.
Evening Temperature: 20°C
Clear with cloudy periods.
Thursday, September 11th, 2025
Overnight Temperature: 19°C
Clear with cloudy periods.
Morning Temperature: 24°C
Sunny. Windy at times.
Afternoon Temperature: 25°C
Sunny. Windy at times.
Evening Temperature: 21°C
Clear.
Friday, September 12th, 2025
Overnight Temperature: 20°C
Clear.
Morning Temperature: 25°C
Sunny.
Afternoon Temperature: 26°C
Sunny. Windy at times.
Evening Temperature: 22°C
Clear.
Saturday, September 13th, 2025
Overnight Temperature: 20°C
Clear.
Morning Temperature: 27°C
Sunny.
Afternoon Temperature: 27°C
Sunny. Windy at times.
Evening Temperature: 22°C
Clear.
Sunday, September 14th, 2025
Overnight Temperature: 21°C
Clear.
Morning Temperature: 27°C
Sunny. Windy at times.
Afternoon Temperature: 28°C
Sunny. Windy at times.
Evening Temperature: 22°C
Clear.
Monday, September 15th, 2025
Overnight Temperature: 22°C
Clear.
Morning Temperature: 28°C
Sunny. Windy at times.
Afternoon Temperature: 28°C
Sunny. Windy at times.
Evening Temperature: 23°C
Clear.
Tuesday, September 16th, 2025
Overnight Temperature: 22°C
Clear.
Morning Temperature: 28°C
Sunny.
Afternoon Temperature: 29°C
Sunny. Windy at times.
Evening Temperature: 24°C
Clear.
Wednesday, September 17th, 2025
Overnight Temperature: 23°C
Clear.
Morning Temperature: 30°C
Sunny.
Afternoon Temperature: 31°C
Sunny. Windy at times.
Evening Temperature: 26°C
Clear.
Thursday, September 18th, 2025
Overnight Temperature: 24°C
Clear.
Morning Temperature: 32°C
Sunny.
Afternoon Temperature: 33°C
Sunny. Windy at times.
Evening Temperature: 28°C
Clear.





 

  [ Local Weather Report ]
Rancho Cucamonga, CA 
11:53 AM  24°C
Overcast
 
Upland, CA 
11:55 AM  23°C
Mostly Sunny
 
Chino, CA 
11:53 AM  26°C
Overcast
 
Montclair, CA 
11:55 AM  23°C
Mostly Sunny
 
Claremont, CA 
11:47 AM  25°C
Overcast
 
Fontana, CA 
11:53 AM  24°C
Overcast
 
Norco, CA 
11:56 AM  26°C
 
 
Pomona, CA 
11:47 AM  25°C
Overcast
 
La Verne Bracket, CA 
11:47 AM  25°C
Overcast
 
La Verne, CA 
11:47 AM  25°C
Overcast

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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