Mammoth, CA Weather Forecast
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Mammoth Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Sunny | Partly Cloudy |
| Hi: 70°FHi: 21°C | Lo: 43°FLo: 6°C | Hi: 76°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 83°FHi: 28°C | Hi: 83°FHi: 28°C Lo: 56°FLo: 13°C | Hi: 83°FHi: 28°C Lo: 56°FLo: 13°C | Lo: 53°FLo: 12°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 43°FLo: 6°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 239 AM PDT Mon Sep 07 2026 

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Issued: 353 AM PDT Mon Sep 7 2026
Key Messages
- Cooler than normal temperatures continue today. East of the Cascades, a Freeze Warning is in place overnight/this morning. Temperatures trend warmer but areas of frost/local freezing temperatures are possible again early Tuesday morning.
- A strong warming and drying trend is expected Tuesday through Thursday with above normal high temperatures. Highs are expected to peak in the mid 80s to mid 90s on Wednesday.
- Upper trough digging into PacNW late this week, but moisture is limited and...
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