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Weather Forecast for Fontana

Now
Current Weather Conditions
80° F

Wind: 8.01 mph
Humidity: 23%
Clouds: 0%
Pressure: 1019 hPa
Sunrise: 10:43 AM ET
Sunset: 8:40 PM ET
Tomorrow
Tomorrow's Weather Conditions
Clear

Sunny
Wed
Wed's Weather Conditions
Clear

Sunny


Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 1:01 pm PST Dec 8, 2025
 
This
Afternoon
This Afternoon: Sunny, with a high near 78. North wind 15 to 20 mph, with gusts as high as 30 mph.
High: 78 °F
Tonight

Tonight: Clear, with a low around 57. North wind 15 to 20 mph, with gusts as high as 30 mph.
Low: 57 °F
Tuesday

Tuesday: Sunny, with a high near 82. North wind 10 to 20 mph, with gusts as high as 30 mph.
High: 82 °F
Tuesday
Night
Tuesday Night: Clear, with a low around 56. North wind 15 to 20 mph, with gusts as high as 30 mph.
Low: 56 °F
Wednesday

Wednesday: Sunny, with a high near 83. North wind 15 to 20 mph, with gusts as high as 30 mph.
High: 83 °F
Wednesday
Night
Wednesday Night: Clear, with a low around 53.
Low: 53 °F
Thursday

Thursday: Sunny, with a high near 81.
High: 81 °F
Thursday
Night
Thursday Night: Clear, with a low around 51.
Low: 51 °F
Friday

Friday: Sunny, with a high near 79.
High: 79 °F
Sunny
Clear
Sunny
Clear
Sunny
Clear
Sunny
Clear
Sunny

Air Quality Alert


This Afternoon
 
Sunny, with a high near 78. North wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
 
Clear, with a low around 57. North wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
 
Sunny, with a high near 82. North wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
 
Clear, with a low around 56. North wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday
 
Sunny, with a high near 83. North wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
 
Clear, with a low around 53.
Thursday
 
Sunny, with a high near 81.
Thursday Night
 
Clear, with a low around 51.
Friday
 
Sunny, with a high near 79.
Friday Night
 
Mostly clear, with a low around 49.
Saturday
 
Sunny, with a high near 76.
Saturday Night
 
Mostly clear, with a low around 51.
Sunday
 
Sunny, with a high near 72.

Forecast from NOAA-NWS for Fontana.



 


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