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Weather Forecast for Fontana

Now
Current Weather Conditions
71° F

Wind: 14.97 mph
Humidity: 50%
Clouds: 0%
Pressure: 1013 hPa
Sunrise: 9:02 AM ET
Sunset: 10:31 PM ET
Tomorrow
Tomorrow's Weather Conditions
Sunny

Mostly Clear
Sat
Sat's Weather Conditions
Sunny

Mostly Clear


Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 11:59 am PDT Apr 29, 2026
 
Tonight

Tonight: Clear, with a low around 53. Southwest wind 10 to 15 mph becoming light  in the evening. Winds could gust as high as 20 mph.
Low: 53 °F
Thursday

Thursday: Sunny, with a high near 78. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
High: 78 °F
Thursday
Night
Thursday Night: Mostly clear, with a low around 55. Southwest wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 20 mph.
Low: 55 °F
Friday

Friday: Sunny, with a high near 83. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
High: 83 °F
Friday
Night
Friday Night: Mostly clear, with a low around 57. West wind 5 to 10 mph, with gusts as high as 20 mph.
Low: 57 °F
Saturday

Saturday: Sunny, with a high near 84.
High: 84 °F
Saturday
Night
Saturday Night: Partly cloudy, with a low around 56.
Low: 56 °F
Sunday

Sunday: Mostly sunny, with a high near 76.
High: 76 °F
Sunday
Night
Sunday Night: Partly cloudy, with a low around 53.
Low: 53 °F
Clear
Sunny
Mostly Clear
Sunny
Mostly Clear
Sunny
Partly Cloudy
Mostly Sunny
Partly Cloudy


Tonight
 
Clear, with a low around 53. Southwest wind 10 to 15 mph becoming light in the evening. Winds could gust as high as 20 mph.
Thursday
 
Sunny, with a high near 78. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
 
Mostly clear, with a low around 55. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Friday
 
Sunny, with a high near 83. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
 
Mostly clear, with a low around 57. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
 
Sunny, with a high near 84.
Saturday Night
 
Partly cloudy, with a low around 56.
Sunday
 
Mostly sunny, with a high near 76.
Sunday Night
 
Partly cloudy, with a low around 53.
Monday
 
Mostly sunny, with a high near 70.
Monday Night
 
Partly cloudy, with a low around 52.
Tuesday
 
Mostly sunny, with a high near 70.
Tuesday Night
 
Partly cloudy, with a low around 52.
Wednesday
 
Sunny, with a high near 77.

Forecast from NOAA-NWS for Fontana.



 


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