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Mammoth Yosemite Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY |
 |  |  | | | | | |  | | | |
| Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Partly Cloudy | Clear | Clear |
| Hi: 86°FHi: 30°C | Lo: 52°FLo: 11°C | Hi: 88°FHi: 31°C | Lo: 53°FLo: 12°C | Hi: 88°FHi: 31°C | Lo: 53°FLo: 12°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Hi: 83°FHi: 28°C | Lo: 49°FLo: 9°C | Hi: 82°FHi: 28°C Lo: 47°FLo: 8°C | Hi: 82°FHi: 28°C Lo: 47°FLo: 8°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 231 AM PDT Tue Aug 18 2026 
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Mammoth Yosemite Forecast Discussion
Issued: 130 AM PDT Tue Aug 18 2026
Key Messages
- Dry and warm conditions persist through late-week across the Eastern Sierra and western Nevada.
- Breezy conditions are expected each afternoon, with stronger winds possible late week.
- Shower and thunderstorm potential returns late week into the weekend.
Discussion
...
Broad upper-level ridging continues to build westward across the Desert Southwest, dominating the weather pattern for the REV CWA through mid-week. This will lead to a continued warming and dry...