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June 1st, 2026 :: 9:44 am PDT   

Local Weather Report for
Ontario
California, United States

 Current Ontario Weather Conditions Updated June 1st at 8:53 am 
haze
Temperature:66°F Dew Point:55°F
Barometer:29.98 inHg Wind: 9 Mph
Humidity:68.2% Visibility:0M
 
 Ontario Weather Forecast Summary  
 
Today
Jun 1st
Tuesday
Jun 2nd
Wednesday
Jun 3rd
Thursday
Jun 4th
Friday
Jun 5th
Sunny Mostly Sunny Mostly Sunny Sunny Sunny
87°F
85°F
65°F
90°F
66°F
92°F
70°F
87°F
68°F
 
 Ontario Detailed Weather Forecast  
 
Monday, June 1st, 2026
Morning Temperature: 75°F
Sunny.
Afternoon Temperature: 85°F
Sunny. Windy at times.
Evening Temperature: 73°F
Clear. Windy at times.
Tuesday, June 2nd, 2026
Overnight Temperature: 66°F
Clear.
Morning Temperature: 73°F
Mostly sunny.
Afternoon Temperature: 84°F
Sunny. Windy at times.
Evening Temperature: 73°F
Clear.
Wednesday, June 3rd, 2026
Overnight Temperature: 67°F
Clear.
Morning Temperature: 75°F
Mostly sunny.
Afternoon Temperature: 89°F
Sunny. Windy at times.
Evening Temperature: 77°F
Clear.
Thursday, June 4th, 2026
Overnight Temperature: 71°F
Clear.
Morning Temperature: 79°F
Sunny.
Afternoon Temperature: 90°F
Sunny. Windy at times.
Evening Temperature: 76°F
Clear.
Friday, June 5th, 2026
Overnight Temperature: 69°F
Clear.
Morning Temperature: 76°F
Sunny.
Afternoon Temperature: 85°F
Sunny. Windy at times.
Evening Temperature: 71°F
Clear. Windy at times.
Saturday, June 6th, 2026
Overnight Temperature: 65°F
Mostly clear.
Morning Temperature: 72°F
Sunny.
Afternoon Temperature: 83°F
Mostly sunny. Windy at times.
Evening Temperature: 69°F
Mostly clear. Windy at times.
Sunday, June 7th, 2026
Overnight Temperature: 64°F
Mostly clear.
Morning Temperature: 70°F
Sunny.
Afternoon Temperature: 80°F
Sunny. Windy at times.
Evening Temperature: 68°F
Clear.
Monday, June 8th, 2026
Overnight Temperature: 63°F
Clear.
Morning Temperature: 69°F
Sunny.
Afternoon Temperature: 80°F
Sunny. Windy.
Evening Temperature: 67°F
Clear. Windy at times.
Tuesday, June 9th, 2026
Overnight Temperature: 61°F
Clear.
Morning Temperature: 67°F
Sunny.
Afternoon Temperature: 81°F
Sunny. Windy at times.
Evening Temperature: 71°F
Clear.





 

  [ Local Weather Report ]
Rancho Cucamonga, CA 
8:53 AM  66°F
haze
 
Upland, CA 
8:55 AM  64°F
 
 
Chino, CA 
8:53 AM  66°F
Mostly Sunny
 
Montclair, CA 
8:55 AM  64°F
 
 
Claremont, CA 
8:47 AM  64°F
haze
 
Fontana, CA 
 
Norco, CA 
8:56 AM  66°F
 
 
Pomona, CA 
8:47 AM  64°F
haze
 
La Verne Bracket, CA 
8:47 AM  64°F
haze
 
La Verne, CA 
8:47 AM  64°F
haze

 
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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