National Weather Service Forecast for: Big Bear Lake CA
Issued by: National Weather Service San Diego, CA
Updated: 1:34 am PDT Mar 19, 2026
 
Today

Today: Sunny, with a high near 83. Calm wind.
Sunny
 Tonight

Tonight: Clear, with a low around 48. Calm wind becoming northeast around 5 mph.
Clear
 Friday

Friday: Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 45. South wind 5 to 10 mph.
Clear
 Saturday

Saturday: Sunny, with a high near 76. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 41.
Partly Cloudy
 Sunday

Sunday: Mostly sunny, with a high near 76.
Mostly Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 43.
Mostly Clear
 Monday

Monday: Sunny, with a high near 78.
Sunny
Hi 83 °F Lo 48 °F Hi 82 °F Lo 45 °F Hi 76 °F Lo 41 °F Hi 76 °F Lo 43 °F Hi 78 °F

Heat Advisory
 

Today
 
 Sunny, with a high near 83. Calm wind.
Tonight
 
 Clear, with a low around 48. Calm wind becoming northeast around 5 mph.
Friday
 
 Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Friday Night
 
 Clear, with a low around 45. South wind 5 to 10 mph.
Saturday
 
 Sunny, with a high near 76. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
 
 Partly cloudy, with a low around 41.
Sunday
 
 Mostly sunny, with a high near 76.
Sunday Night
 
 Mostly clear, with a low around 43.
Monday
 
 Sunny, with a high near 78.
Monday Night
 
 Mostly clear, with a low around 43.
Tuesday
 
 Sunny, with a high near 79.
Tuesday Night
 
 Clear, with a low around 42.
Wednesday
 
 Sunny, with a high near 78.

 

Forecast from NOAA-NWS for Big Bear Lake CA.