National Weather Service Forecast for: Mount Wilson CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 7:31 am PDT May 4, 2026
 
Today

Today: A 20 percent chance of showers after 11am. Partly sunny, with a high near 45. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Slight Chance
Showers
 Tonight

Tonight: A 30 percent chance of showers. Mostly cloudy, with a low around 40. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers
 Tuesday

Tuesday: A chance of rain before 11am, then a chance of showers after 11am. Partly sunny, with a high near 45. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 39. South southwest wind 5 to 10 mph.
Partly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 62. North northwest wind around 5 mph becoming southwest in the morning.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 50.
Clear
 Thursday

Thursday: Sunny, with a high near 70.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 54.
Mostly Clear
 Friday

Friday: Sunny, with a high near 72.
Sunny
Hi 45 °F Lo 40 °F Hi 45 °F Lo 39 °F Hi 62 °F Lo 50 °F Hi 70 °F Lo 54 °F Hi 72 °F

 

Today
 
 A 20 percent chance of showers after 11am. Partly sunny, with a high near 45. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 40. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 A chance of rain before 11am, then a chance of showers after 11am. Partly sunny, with a high near 45. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Partly cloudy, with a low around 39. South southwest wind 5 to 10 mph.
Wednesday
 
 Sunny, with a high near 62. North northwest wind around 5 mph becoming southwest in the morning.
Wednesday Night
 
 Clear, with a low around 50.
Thursday
 
 Sunny, with a high near 70.
Thursday Night
 
 Mostly clear, with a low around 54.
Friday
 
 Sunny, with a high near 72.
Friday Night
 
 Clear, with a low around 56.
Saturday
 
 Sunny, with a high near 75.
Saturday Night
 
 Clear, with a low around 58.
Sunday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Mount Wilson CA.