National Weather Service Forecast for: Westmont CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 11:27 am PDT Apr 6, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 75. Southwest wind around 10 mph.
Sunny

Tonight

Tonight: Patchy dense fog after 11pm.  Otherwise, increasing clouds, with a low around 57. West southwest wind 5 to 10 mph becoming southeast after midnight.
Patchy Dense
Fog
Tuesday

Tuesday: Patchy dense fog before 11am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Patchy Dense
Fog then
Sunny
Tuesday
Night
Tuesday Night: Patchy dense fog after 11pm.  Otherwise, increasing clouds, with a low around 58. West southwest wind 5 to 10 mph becoming light and variable  in the evening.
Patchy Dense
Fog
Wednesday

Wednesday: Patchy dense fog before 11am.  Otherwise, mostly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Patchy Dense
Fog then
Sunny
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 58.
Partly Cloudy

Thursday

Thursday: Mostly cloudy, with a high near 74.
Mostly Cloudy

Thursday
Night
Thursday Night: Mostly cloudy, with a low around 57.
Mostly Cloudy

Friday

Friday: A slight chance of rain.  Mostly sunny, with a high near 72.
Slight Chance
Rain
Hi 75 °F Lo 57 °F Hi 72 °F Lo 58 °F Hi 74 °F Lo 58 °F Hi 74 °F Lo 57 °F Hi 72 °F

 

This Afternoon
 
Sunny, with a high near 75. Southwest wind around 10 mph.
Tonight
 
Patchy dense fog after 11pm. Otherwise, increasing clouds, with a low around 57. West southwest wind 5 to 10 mph becoming southeast after midnight.
Tuesday
 
Patchy dense fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
 
Patchy dense fog after 11pm. Otherwise, increasing clouds, with a low around 58. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
 
Patchy dense fog before 11am. Otherwise, mostly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
 
Partly cloudy, with a low around 58.
Thursday
 
Mostly cloudy, with a high near 74.
Thursday Night
 
Mostly cloudy, with a low around 57.
Friday
 
A slight chance of rain. Mostly sunny, with a high near 72.
Friday Night
 
A chance of rain and thunderstorms. Mostly cloudy, with a low around 57.
Saturday
 
A chance of rain and thunderstorms. Mostly cloudy, with a high near 68.
Saturday Night
 
A slight chance of rain. Partly cloudy, with a low around 55.
Sunday
 
A slight chance of rain. Partly sunny, with a high near 67.

 

Forecast from NOAA-NWS for Westmont CA.