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Weather Forecast for Fontana

Now
Current Weather Conditions
50° F

Wind: 0 mph
Humidity: 38%
Clouds: 0%
Pressure: 1023 hPa
Sunrise: 10:49 AM ET
Sunset: 9:15 PM ET
Tomorrow
Tomorrow's Weather Conditions
Mostly Clear

Sunny
Fri
Fri's Weather Conditions
Clear

Sunny


Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 2:27 am PST Jan 28, 2026
 
Today

Today: Mostly sunny, with a high near 74. Light and variable wind becoming north 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
High: 74 °F
Tonight

Tonight: Mostly clear, with a low around 53. North wind 15 to 20 mph, with gusts as high as 30 mph.
Low: 53 °F
Thursday

Thursday: Sunny, with a high near 76. North wind around 20 mph, with gusts as high as 35 mph.
High: 76 °F
Thursday
Night
Thursday Night: Clear, with a low around 53. North wind 15 to 20 mph, with gusts as high as 30 mph.
Low: 53 °F
Friday

Friday: Sunny, with a high near 80. North wind 15 to 20 mph, with gusts as high as 35 mph.
High: 80 °F
Friday
Night
Friday Night: Mostly clear, with a low around 54.
Low: 54 °F
Saturday

Saturday: Sunny, with a high near 80.
High: 80 °F
Saturday
Night
Saturday Night: Mostly clear, with a low around 54.
Low: 54 °F
Sunday

Sunday: Mostly sunny, with a high near 77.
High: 77 °F
Mostly Sunny
Mostly Clear
Sunny
Clear
Sunny
Mostly Clear
Sunny
Mostly Clear
Mostly Sunny


Today
 
Mostly sunny, with a high near 74. Light and variable wind becoming north 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
 
Mostly clear, with a low around 53. North wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
 
Sunny, with a high near 76. North wind around 20 mph, with gusts as high as 35 mph.
Thursday Night
 
Clear, with a low around 53. North wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
 
Sunny, with a high near 80. North wind 15 to 20 mph, with gusts as high as 35 mph.
Friday Night
 
Mostly clear, with a low around 54.
Saturday
 
Sunny, with a high near 80.
Saturday Night
 
Mostly clear, with a low around 54.
Sunday
 
Mostly sunny, with a high near 77.
Sunday Night
 
Partly cloudy, with a low around 53.
Monday
 
Sunny, with a high near 73.
Monday Night
 
Mostly clear, with a low around 52.
Tuesday
 
Sunny, with a high near 76.

Forecast from NOAA-NWS for Fontana.



 


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