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Letha Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
 |  | |  |  | | | | | | | |
| Mostly Cloudy | Cloudy | Clouds | Sunny | Clear | Mostly Clear | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 45°FLo: 7°C | Hi: 72°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 77°FHi: 25°C | Lo: 46°FLo: 8°C | Hi: 77°FHi: 25°C Lo: 49°FLo: 9°C | Hi: 77°FHi: 25°C Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C | Hi: 78°FHi: 26°C Lo: 49°FLo: 9°C | Hi: 78°FHi: 26°C Lo: 49°FLo: 9°C | Hi: 78°FHi: 26°C Lo: 49°FLo: 9°C | Hi: 78°FHi: 26°C Lo: 49°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 PM MDT Sat Sep 26 2026 
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Issued: 524 PM MDT Sat Sep 26 2026
Key Messages
- Mostly cloudy and slightly warmer Sunday and Monday, the mostly clear but continued warming through the week.
- A slight chance of showers and afternoon thunderstorms in southeast Oregon and central Idaho on Sunday.
Aviation
/00Z Sunday through Monday/... Issued 523 PM MDT SAT SEP 26 2026
VFR with BKN-OVC high cloud coverage overnight into Sunday. Surface winds: variable under 10 kts overnight. Winds aloft at 10kft MSL: SW 10-25 kt.
KBOI...VFR. Surface winds: variable under 10 kts overnigh...