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Weather Forecast for Fontana

Now
Current Weather Conditions
62° F

Wind: 3 mph
Humidity: 41%
Clouds: 0%
Pressure: 1022 hPa
Sunrise: 10:47 AM ET
Sunset: 9:18 PM ET
Tomorrow
Tomorrow's Weather Conditions
Mostly Clear

Mostly Sunny
Mon
Mon's Weather Conditions
Partly Cloudy

Mostly Sunny


Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 12:30 am PST Jan 31, 2026
 
Today

Today: Sunny, with a high near 82. North wind around 10 mph, with gusts as high as 20 mph.
High: 82 °F
Tonight

Tonight: Mostly clear, with a low around 56. North wind 5 to 10 mph, with gusts as high as 20 mph.
Low: 56 °F
Sunday

Sunday: Mostly sunny, with a high near 81. Northeast wind around 5 mph becoming calm.
High: 81 °F
Sunday
Night
Sunday Night: Partly cloudy, with a low around 55. West wind around 5 mph becoming calm.
Low: 55 °F
Monday

Monday: Mostly sunny, with a high near 76. Light and variable wind becoming west 5 to 10 mph in the afternoon.
High: 76 °F
Monday
Night
Monday Night: Mostly clear, with a low around 54.
Low: 54 °F
Tuesday

Tuesday: Sunny, with a high near 82.
High: 82 °F
Tuesday
Night
Tuesday Night: Clear, with a low around 57.
Low: 57 °F
Wednesday

Wednesday: Sunny, with a high near 83.
High: 83 °F
Sunny
Mostly Clear
Mostly Sunny
Partly Cloudy
Mostly Sunny
Mostly Clear
Sunny
Clear
Sunny


Today
 
Sunny, with a high near 82. North wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
Mostly clear, with a low around 56. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
 
Mostly sunny, with a high near 81. Northeast wind around 5 mph becoming calm.
Sunday Night
 
Partly cloudy, with a low around 55. West wind around 5 mph becoming calm.
Monday
 
Mostly sunny, with a high near 76. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Monday Night
 
Mostly clear, with a low around 54.
Tuesday
 
Sunny, with a high near 82.
Tuesday Night
 
Clear, with a low around 57.
Wednesday
 
Sunny, with a high near 83.
Wednesday Night
 
Mostly clear, with a low around 57.
Thursday
 
Sunny, with a high near 80.
Thursday Night
 
Partly cloudy, with a low around 56.
Friday
 
Mostly sunny, with a high near 78.

Forecast from NOAA-NWS for Fontana.



 


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