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Weather Forecast for Fontana

Now
Current Weather Conditions
57° F

Wind: 3.44 mph
Humidity: 75%
Clouds: 100%
Pressure: 1014 hPa
Sunrise: 9:08 AM ET
Sunset: 10:27 PM ET
Tomorrow
Tomorrow's Weather Conditions
Increasing
Clouds

Gradual
Clearing
Fri
Fri's Weather Conditions
Partly Cloudy

Decreasing
Clouds


Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 2:06 am PDT Apr 23, 2025
 
Today

Today: Patchy fog before 11am.  Otherwise, sunny, with a high near 71. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
High: 71 °F
Tonight

Tonight: Increasing clouds, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph.
Low: 50 °F
Thursday

Thursday: Cloudy through mid morning, then gradual clearing, with a high near 72. Light southwest wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
High: 72 °F
Thursday
Night
Thursday Night: Partly cloudy, with a low around 49. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Low: 49 °F
Friday

Friday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
High: 66 °F
Friday
Night
Friday Night: A slight chance of showers after 11pm.  Increasing clouds, with a low around 47. Chance of precipitation is 20%.
Low: 47 °F
Saturday

Saturday: A slight chance of showers.  Partly sunny, with a high near 63. Chance of precipitation is 20%.
High: 63 °F
Saturday
Night
Saturday Night: Partly cloudy, with a low around 46.
Low: 46 °F
Sunday

Sunday: Mostly sunny, with a high near 67.
High: 67 °F
Patchy Fog
then Sunny
Increasing
Clouds
Gradual
Clearing
Partly Cloudy
Decreasing
Clouds
Slight Chance
Showers
Slight Chance
Showers
Partly Cloudy
Mostly Sunny


Today
 
Patchy fog before 11am. Otherwise, sunny, with a high near 71. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
 
Increasing clouds, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
 
Cloudy through mid morning, then gradual clearing, with a high near 72. Light southwest wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
 
Partly cloudy, with a low around 49. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Friday
 
Mostly cloudy, then gradually becoming sunny, with a high near 66. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
 
A slight chance of showers after 11pm. Increasing clouds, with a low around 47. Chance of precipitation is 20%.
Saturday
 
A slight chance of showers. Partly sunny, with a high near 63. Chance of precipitation is 20%.
Saturday Night
 
Partly cloudy, with a low around 46.
Sunday
 
Mostly sunny, with a high near 67.
Sunday Night
 
Mostly clear, with a low around 48.
Monday
 
Sunny, with a high near 73.
Monday Night
 
Mostly clear, with a low around 52.
Tuesday
 
Sunny, with a high near 80.

Forecast from NOAA-NWS for Fontana.



 


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