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Weather Forecast for Fontana

Now
Current Weather Conditions
77° F

Wind: 24.16 mph
Humidity: 18%
Clouds: 0%
Pressure: 1022 hPa
Sunrise: 10:44 AM ET
Sunset: 9:22 PM ET
Tomorrow
Tomorrow's Weather Conditions
Mostly Clear


Mostly Sunny

Fri
Fri's Weather Conditions
Slight Chance
Showers

Partly Sunny



Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 2:07 am PST Feb 4, 2026
 
Today

Today: Patchy blowing dust. Sunny, with a high near 84. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
High: 84 °F
Tonight

Tonight: Mostly clear, with a low around 58. North wind 10 to 20 mph, with gusts as high as 30 mph.
Low: 58 °F
Thursday

Thursday: Mostly sunny, with a high near 80. North wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
High: 80 °F
Thursday
Night
Thursday Night: A slight chance of showers after 10pm.  Mostly cloudy, with a low around 57. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.
Low: 57 °F
Friday

Friday: Partly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
High: 74 °F
Friday
Night
Friday Night: Partly cloudy, with a low around 54.
Low: 54 °F
Saturday

Saturday: Sunny, with a high near 76.
High: 76 °F
Saturday
Night
Saturday Night: Clear, with a low around 54.
Low: 54 °F
Sunday

Sunday: Sunny, with a high near 79.
High: 79 °F
Patchy
Blowing Dust
and Breezy
Mostly Clear

Mostly Sunny

Slight Chance
Showers
Partly Sunny

Partly Cloudy

Sunny

Clear

Sunny

Wind Advisory
Air Quality Alert


Today
 
Patchy blowing dust. Sunny, with a high near 84. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
Tonight
 
Mostly clear, with a low around 58. North wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
 
Mostly sunny, with a high near 80. North wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
 
A slight chance of showers after 10pm. Mostly cloudy, with a low around 57. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
 
Partly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
 
Partly cloudy, with a low around 54.
Saturday
 
Sunny, with a high near 76.
Saturday Night
 
Clear, with a low around 54.
Sunday
 
Sunny, with a high near 79.
Sunday Night
 
Mostly clear, with a low around 55.
Monday
 
Mostly sunny, with a high near 74.
Monday Night
 
A slight chance of showers. Mostly cloudy, with a low around 52.
Tuesday
 
A chance of showers. Partly sunny, with a high near 65.

Forecast from NOAA-NWS for Fontana.



 


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