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September 19th, 2025 :: 12:14 pm PDT   

Local Weather Report for
Rancho Cucamonga
California, United States

 Current Rancho Cucamonga Weather Conditions Updated September 19th at 10:53 am 
Mostly Cloudy
Temperature:79°F Dew Point:64°F
Barometer:29.95 inHg Wind: 9 Mph
Humidity:61.4% Visibility:0M
 
 Rancho Cucamonga Weather Forecast Summary  
 
Today
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Tuesday
Sep 23rd
Mostly Sunny Sunny Cloudy Mostly Sunny Thundershowers
86°F
88°F
73°F
85°F
72°F
86°F
70°F
77°F
70°F
 
 Rancho Cucamonga Detailed Weather Forecast  
 
Friday, September 19th, 2025
Afternoon Temperature: 81°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 75°F
Clear.
Saturday, September 20th, 2025
Overnight Temperature: 73°F
Clear.
Morning Temperature: 84°F
Sunny.
Afternoon Temperature: 83°F
Sunny. Windy at times.
Evening Temperature: 76°F
Clear.
Sunday, September 21st, 2025
Overnight Temperature: 73°F
Cloudy.
Morning Temperature: 83°F
Cloudy.
Afternoon Temperature: 78°F
Cloudy. Windy at times.
Evening Temperature: 73°F
Cloudy.
Monday, September 22nd, 2025
Overnight Temperature: 71°F
Clear.
Morning Temperature: 83°F
Sunny.
Afternoon Temperature: 82°F
Mostly sunny. Windy at times.
Evening Temperature: 75°F
Clear.
Tuesday, September 23rd, 2025
Overnight Temperature: 71°F
Cloudy with a chance of showers.
Morning Temperature: 74°F
Cloudy with a few showers. Slight chance of a thunderstorm.
Afternoon Temperature: 75°F
Sunny with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 71°F
Cloudy. Slight chance of a thunderstorm.
Wednesday, September 24th, 2025
Overnight Temperature: 69°F
Clear with cloudy periods.
Morning Temperature: 79°F
Sunny. Windy at times.
Afternoon Temperature: 78°F
Sunny. Windy at times.
Evening Temperature: 72°F
Clear.
Thursday, September 25th, 2025
Overnight Temperature: 70°F
Clear.
Morning Temperature: 81°F
Sunny.
Afternoon Temperature: 80°F
Sunny. Windy at times.
Evening Temperature: 73°F
Clear.
Friday, September 26th, 2025
Overnight Temperature: 71°F
Clear.
Morning Temperature: 85°F
Sunny.
Afternoon Temperature: 83°F
Sunny. Windy at times.
Evening Temperature: 76°F
Clear.
Saturday, September 27th, 2025
Overnight Temperature: 74°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 85°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 83°F
Sunny. Windy at times.
Evening Temperature: 78°F
Clear.





 

  [ Local Weather Report ]
Upland, CA 
 
Ontario, CA 
10:53 AM  79°F
Mostly Cloudy
 
Montclair, CA 
 
Claremont, CA 
10:47 AM  82°F
Overcast
 
Chino, CA 
10:53 AM  81°F
Mostly Cloudy
 
Fontana, CA 
10:53 AM  79°F
Mostly Cloudy
 
La Verne Bracket, CA 
10:47 AM  82°F
Overcast
 
La Verne, CA 
10:47 AM  82°F
Overcast
 
Pomona, CA 
10:47 AM  82°F
Overcast
 
Norco, CA 
10:56 AM  81°F
Overcast

This WeatherCity Weather Forecast for Rancho Cucamonga, 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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