National Weather Service Forecast for: 3 Miles SW Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 7:33 pm PDT Apr 13, 2025
 
Overnight

Overnight: Partly cloudy, with a low around 54. Southwest wind around 5 mph.
Partly Cloudy

 Monday

Monday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 78. West wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Patchy Fog
then Mostly
Cloudy
 Monday
Night
Monday Night: Patchy drizzle and fog after 11pm. Mostly cloudy, with a low around 53. West wind 5 to 15 mph, with gusts as high as 25 mph.
Patchy
Drizzle and
Patchy Fog
 Tuesday

Tuesday: Patchy drizzle and fog before 11am. Mostly sunny, with a high near 75. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Patchy
Drizzle and
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 51. West wind 5 to 15 mph, with gusts as high as 20 mph.
Patchy Fog

 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 68.
Patchy Fog
then Mostly
Sunny
 Wednesday
Night
Wednesday Night: Increasing clouds, with a low around 51.
Increasing
Clouds

 Thursday

Thursday: Mostly cloudy, with a high near 64.
Mostly Cloudy

 Thursday
Night
Thursday Night: A slight chance of showers after 11pm. Cloudy, with a low around 50.
Slight Chance
Showers
Lo 54 °F Hi 78 °F Lo 53 °F Hi 75 °F Lo 51 °F Hi 68 °F Lo 51 °F Hi 64 °F Lo 50 °F

 

Overnight
 
 Partly cloudy, with a low around 54. Southwest wind around 5 mph.
Monday
 
 Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 78. West wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
 
 Patchy drizzle and fog after 11pm. Mostly cloudy, with a low around 53. West wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
 
 Patchy drizzle and fog before 11am. Mostly sunny, with a high near 75. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 51. West wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
 
 Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 68.
Wednesday Night
 
 Increasing clouds, with a low around 51.
Thursday
 
 Mostly cloudy, with a high near 64.
Thursday Night
 
 A slight chance of showers after 11pm. Cloudy, with a low around 50.
Friday
 
 A chance of showers, mainly after 11am. Mostly cloudy, with a high near 63.
Friday Night
 
 Mostly cloudy, with a low around 48.
Saturday
 
 Mostly sunny, with a high near 71.
Saturday Night
 
 Mostly clear, with a low around 50.
Sunday
 
 Sunny, with a high near 74.

 

Forecast from NOAA-NWS for 3 Miles SW Fontana CA.