National Weather Service Forecast for: Mammoth Lakes CA
Issued by: National Weather Service Reno, NV
Updated: 11:30 pm PDT Aug 19, 2026
 
Overnight

Overnight: Mostly clear, with a low around 57. Southwest wind around 5 mph, with gusts as high as 20 mph.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 57. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Partly Cloudy
 Friday

Friday: Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.
Mostly Sunny
 Friday
Night
Friday Night: Mostly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.
Mostly Cloudy
 Saturday

Saturday: Sunny, with a high near 78. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 53.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 78.
Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 53.
Partly Cloudy
Lo 57 °F Hi 84 °F Lo 57 °F Hi 80 °F Lo 56 °F Hi 78 °F Lo 53 °F Hi 78 °F Lo 53 °F

 

Overnight
 
 Mostly clear, with a low around 57. Southwest wind around 5 mph, with gusts as high as 20 mph.
Thursday
 
 Sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
 
 Partly cloudy, with a low around 57. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Friday
 
 Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.
Friday Night
 
 Mostly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.
Saturday
 
 Sunny, with a high near 78. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Saturday Night
 
 Mostly clear, with a low around 53.
Sunday
 
 Sunny, with a high near 78.
Sunday Night
 
 Partly cloudy, with a low around 53.
Monday
 
 Mostly sunny, with a high near 77.
Monday Night
 
 Mostly clear, with a low around 52.
Tuesday
 
 Sunny, with a high near 78.
Tuesday Night
 
 Mostly clear, with a low around 52.
Wednesday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Mammoth Lakes CA.