National Weather Service Forecast for: Alpine CA
Issued by: National Weather Service San Diego, CA
Updated: 12:05 pm PDT Jul 12, 2026
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 86. West wind 5 to 10 mph.
Mostly Sunny
Tonight

Tonight: Mostly clear, with a low around 67. West wind around 5 mph becoming calm.
Mostly Clear
Monday

Monday: Mostly sunny, with a high near 86. Light southwest wind becoming west 5 to 10 mph in the morning.
Mostly Sunny
Monday
Night
Monday Night: Partly cloudy, with a low around 67. West wind around 5 mph becoming calm  in the evening.
Partly Cloudy
Tuesday

Tuesday: Sunny, with a high near 92. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 71.
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 98.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75.
Mostly Clear
Thursday

Thursday: A chance of showers after 11am.  Mostly sunny, with a high near 92.
Chance
Showers
Hi 86 °F Lo 67 °F Hi 86 °F Lo 67 °F Hi 92 °F Lo 71 °F Hi 98 °F Lo 75 °F Hi 92 °F

Extreme Heat Watch
 

This Afternoon
 
Mostly sunny, with a high near 86. West wind 5 to 10 mph.
Tonight
 
Mostly clear, with a low around 67. West wind around 5 mph becoming calm.
Monday
 
Mostly sunny, with a high near 86. Light southwest wind becoming west 5 to 10 mph in the morning.
Monday Night
 
Partly cloudy, with a low around 67. West wind around 5 mph becoming calm in the evening.
Tuesday
 
Sunny, with a high near 92. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
 
Mostly clear, with a low around 71.
Wednesday
 
Sunny, with a high near 98.
Wednesday Night
 
Mostly clear, with a low around 75.
Thursday
 
A chance of showers after 11am. Mostly sunny, with a high near 92.
Thursday Night
 
A chance of showers before 11pm. Partly cloudy, with a low around 70.
Friday
 
A chance of showers. Mostly sunny, with a high near 87.
Friday Night
 
A chance of showers. Partly cloudy, with a low around 69.
Saturday
 
A chance of showers. Partly sunny, with a high near 86.

 

Forecast from NOAA-NWS for Alpine CA.