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Sunrise:  6:54 am
Sunset:  4:53 pm
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December 31st, 2025 :: 5:30 pm PST   

Local Weather Report for
Rancho Cucamonga
California, United States

 Current Rancho Cucamonga Weather Conditions Updated December 31st at 3:53 pm 
light rain mist
Temperature:57°F Dew Point:55°F
Barometer:30.01 inHg Wind: 6 Mph
Humidity:93.7% Visibility:0M
 
 Rancho Cucamonga Weather Forecast Summary  
 
Today
Dec 31st
Thursday
Jan 1st
Friday
Jan 2nd
Saturday
Jan 3rd
Sunday
Jan 4th
Showers Showers Cloudy Cloudy Showers
62°F
59°F
57°F
67°F
55°F
66°F
59°F
63°F
57°F
 
 Rancho Cucamonga Detailed Weather Forecast  
 
Wednesday, December 31st, 2025
Evening Temperature: 57°F
Cloudy with showers likely.
Thursday, January 1st, 2026
Overnight Temperature: 57°F
Cloudy with showers likely.
Morning Temperature: 59°F
Cloudy with a few showers.
Afternoon Temperature: 58°F
Cloudy with a few showers.
Evening Temperature: 57°F
Mostly clear with a chance of showers.
Friday, January 2nd, 2026
Overnight Temperature: 56°F
Clear with cloudy periods with a slight chance of showers.
Morning Temperature: 64°F
A mix of cloud and sun.
Afternoon Temperature: 64°F
Cloudy.
Evening Temperature: 61°F
Cloudy.
Saturday, January 3rd, 2026
Overnight Temperature: 59°F
Cloudy.
Morning Temperature: 65°F
Cloudy.
Afternoon Temperature: 64°F
Cloudy.
Evening Temperature: 60°F
A mix of cloudy and clear skies.
Sunday, January 4th, 2026
Overnight Temperature: 57°F
A mix of cloudy and clear skies.
Morning Temperature: 62°F
Cloudy with a chance of showers.
Afternoon Temperature: 59°F
Cloudy with a few showers.
Evening Temperature: 59°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Monday, January 5th, 2026
Overnight Temperature: 57°F
Cloudy with a few showers.
Morning Temperature: 59°F
A mix of cloud and sun with showers likely.
Afternoon Temperature: 59°F
A mix of cloud and sun with showers likely.
Evening Temperature: 57°F
A mix of cloudy and clear skies with a chance of showers.
Tuesday, January 6th, 2026
Overnight Temperature: 55°F
Cloudy with a chance of showers.
Morning Temperature: 59°F
Cloudy with a few showers.
Afternoon Temperature: 57°F
Cloudy with a few showers.
Evening Temperature: 57°F
Cloudy with rain.
Wednesday, January 7th, 2026
Overnight Temperature: 54°F
Cloudy with rain. Windy at times.
Morning Temperature: 53°F
Cloudy with periods of rain. Windy at times.
Afternoon Temperature: 54°F
A mix of cloud and sun with showers likely. Windy at times.
Evening Temperature: 52°F
Clear with cloudy periods with a chance of showers.
Thursday, January 8th, 2026
Overnight Temperature: 51°F
Clear with cloudy periods with a slight chance of showers.
Morning Temperature: 55°F
Cloudy with a slight chance of showers.
Afternoon Temperature: 55°F
Cloudy.
Evening Temperature: 52°F
Cloudy.





 

  [ Local Weather Report ]
Upland, CA 
3:55 PM  55°F
light rain
 
Ontario, CA 
3:53 PM  57°F
light rain mist
 
Montclair, CA 
3:55 PM  55°F
light rain
 
Claremont, CA 
 
Chino, CA 
3:53 PM  57°F
light rain
 
Fontana, CA 
 
La Verne Bracket, CA 
 
La Verne, CA 
 
Pomona, CA 
 
Norco, CA 
3:56 PM  57°F
light rain

 
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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