National Weather Service Forecast for: 4 Miles S Rialto CA
Issued by: National Weather Service San Diego, CA
Updated: 7:33 pm PDT Apr 13, 2025
 
Tonight

Tonight: Partly cloudy, with a low around 54. West wind 5 to 10 mph.
Partly Cloudy

 Monday

Monday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 79. Light southwest wind becoming west 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 10 mph, with gusts as high as 20 mph.
Patchy
Drizzle and
Patchy Fog
 Tuesday

Tuesday: Patchy drizzle and fog before 11am. Mostly sunny, with a high near 75. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 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 10 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 69.
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 65.
Mostly Cloudy

 Thursday
Night
Thursday Night: A slight chance of showers after 11pm. Mostly cloudy, with a low around 50.
Slight Chance
Showers
Lo 54 °F Hi 79 °F Lo 53 °F Hi 75 °F Lo 51 °F Hi 69 °F Lo 51 °F Hi 65 °F Lo 50 °F

 

Tonight
 
 Partly cloudy, with a low around 54. West wind 5 to 10 mph.
Monday
 
 Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 79. Light southwest wind becoming west 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 10 mph, with gusts as high as 20 mph.
Tuesday
 
 Patchy drizzle and fog before 11am. Mostly sunny, with a high near 75. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 51. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
 
 Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 69.
Wednesday Night
 
 Increasing clouds, with a low around 51.
Thursday
 
 Mostly cloudy, with a high near 65.
Thursday Night
 
 A slight chance of showers after 11pm. Mostly cloudy, with a low around 50.
Friday
 
 A chance of showers, mainly after 11am. Mostly cloudy, with a high near 64.
Friday Night
 
 A slight chance of showers. Mostly cloudy, with a low around 47.
Saturday
 
 Mostly sunny, with a high near 72.
Saturday Night
 
 Mostly clear, with a low around 50.
Sunday
 
 Mostly sunny, with a high near 74.

 

Forecast from NOAA-NWS for 4 Miles S Rialto CA.