National Weather Service Forecast for: Westmont CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 3:31 am PDT Jul 8, 2025
 
Today

Today: Patchy fog before 11am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 82. Light south wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Patchy Fog
then Sunny
Tonight

Tonight: Patchy dense fog after 11pm.  Otherwise, increasing clouds, with a low around 64. West southwest wind 5 to 15 mph.
Patchy Dense
Fog
Wednesday

Wednesday: Patchy dense fog before 11am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 84. Light south southwest wind becoming west southwest 5 to 10 mph in the afternoon.
Patchy Dense
Fog then
Sunny
Wednesday
Night
Wednesday Night: Patchy dense fog after 11pm.  Otherwise, increasing clouds, with a low around 63. West southwest wind 5 to 10 mph becoming light and variable  in the evening.
Patchy Dense
Fog
Thursday

Thursday: Patchy dense fog before 11am.  Otherwise, mostly sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Patchy Dense
Fog then
Sunny
Thursday
Night
Thursday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 63.
Patchy Fog

Friday

Friday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 81.
Patchy Fog
then Sunny
Friday
Night
Friday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 63.
Patchy Fog

Saturday

Saturday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 79.
Patchy Fog
then Sunny
Hi 82 °F Lo 64 °F Hi 84 °F Lo 63 °F Hi 85 °F Lo 63 °F Hi 81 °F Lo 63 °F Hi 79 °F

Air Quality Alert
 

Today
 
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 82. Light south wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Tonight
 
Patchy dense fog after 11pm. Otherwise, increasing clouds, with a low around 64. West southwest wind 5 to 15 mph.
Wednesday
 
Patchy dense fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 84. Light south southwest wind becoming west southwest 5 to 10 mph in the afternoon.
Wednesday Night
 
Patchy dense fog after 11pm. Otherwise, increasing clouds, with a low around 63. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Thursday
 
Patchy dense fog before 11am. Otherwise, mostly sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 63.
Friday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81.
Friday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 63.
Saturday
 
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79.
Saturday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 62.
Sunday
 
Patchy fog. Otherwise, mostly sunny, with a high near 78.
Sunday Night
 
Patchy fog. Otherwise, mostly cloudy, with a low around 63.
Monday
 
Patchy fog. Otherwise, mostly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Westmont CA.