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Weather Forecast for Fontana

Now
Current Weather Conditions
68° F

Wind: 4.61 mph
Humidity: 26%
Clouds: 0%
Pressure: 1017 hPa
Sunrise: 10:41 AM ET
Sunset: 8:40 PM ET
Tomorrow
Tomorrow's Weather Conditions
Clear

Sunny
Sun
Sun's Weather Conditions
Clear

Sunny


Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 1:40 am PST Dec 5, 2025
 
Today

Today: Sunny, with a high near 71. North wind around 10 mph, with gusts as high as 20 mph.
High: 71 °F
Tonight

Tonight: Clear, with a low around 48. Calm wind becoming northeast around 5 mph.
Low: 48 °F
Saturday

Saturday: Sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
High: 71 °F
Saturday
Night
Saturday Night: Clear, with a low around 49. Northwest wind around 5 mph becoming calm.
Low: 49 °F
Sunday

Sunday: Sunny, with a high near 76. Calm wind.
High: 76 °F
Sunday
Night
Sunday Night: Mostly clear, with a low around 51.
Low: 51 °F
Monday

Monday: Sunny, with a high near 78.
High: 78 °F
Monday
Night
Monday Night: Clear, with a low around 53.
Low: 53 °F
Tuesday

Tuesday: Sunny, with a high near 80.
High: 80 °F
Sunny
Clear
Sunny
Clear
Sunny
Mostly Clear
Sunny
Clear
Sunny


Today
 
Sunny, with a high near 71. North wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
Clear, with a low around 48. Calm wind becoming northeast around 5 mph.
Saturday
 
Sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
 
Clear, with a low around 49. Northwest wind around 5 mph becoming calm.
Sunday
 
Sunny, with a high near 76. Calm wind.
Sunday Night
 
Mostly clear, with a low around 51.
Monday
 
Sunny, with a high near 78.
Monday Night
 
Clear, with a low around 53.
Tuesday
 
Sunny, with a high near 80.
Tuesday Night
 
Mostly clear, with a low around 54.
Wednesday
 
Sunny, with a high near 79.
Wednesday Night
 
Clear, with a low around 54.
Thursday
 
Sunny, with a high near 80.

Forecast from NOAA-NWS for Fontana.



 


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