National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 2:20 am PDT Apr 10, 2025
 
Today

Today: Sunny, with a high near 89. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 61. West wind 5 to 10 mph becoming light and variable in the evening.
Mostly Clear
 Friday

Friday: Sunny, with a high near 89. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 60. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Partly Cloudy
 Saturday

Saturday: Mostly sunny, with a high near 83. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Mostly Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 56.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 82.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 56.
Mostly Clear
 Monday

Monday: Sunny, with a high near 81.
Sunny
Hi 89 °F Lo 61 °F Hi 89 °F Lo 60 °F Hi 83 °F Lo 56 °F Hi 82 °F Lo 56 °F Hi 81 °F

 

Today
 
 Sunny, with a high near 89. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
 
 Mostly clear, with a low around 61. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
 
 Sunny, with a high near 89. 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 60. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Saturday
 
 Mostly sunny, with a high near 83. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
 
 Mostly clear, with a low around 56.
Sunday
 
 Sunny, with a high near 82.
Sunday Night
 
 Mostly clear, with a low around 56.
Monday
 
 Sunny, with a high near 81.
Monday Night
 
 Mostly clear, with a low around 54.
Tuesday
 
 Sunny, with a high near 77.
Tuesday Night
 
 Mostly clear, with a low around 52.
Wednesday
 
 Sunny, with a high near 74.

 

Forecast from NOAA-NWS for Fontana CA.