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Teton County Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
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| Chance of T-Storm | Chance of Rain | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Chance of Rain | Chance of Rain | Mostly Clear | Mostly Clear | Partly Cloudy |
| Hi: 61°FHi: 16°C | Lo: 37°FLo: 3°C | Hi: 64°FHi: 18°C | Lo: 37°FLo: 3°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 73°FHi: 23°C | Hi: 73°FHi: 23°C Lo: 44°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 44°FLo: 7°C | Hi: 75°FHi: 24°C Lo: 43°FLo: 6°C | Hi: 75°FHi: 24°C Lo: 43°FLo: 6°C | Hi: 76°FHi: 24°C Lo: 45°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1231 AM MDT Sat Sep 19 2026 
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Issued: 106 AM MDT Sat Sep 19 2026
Key Messages
- Light showers with isolated thunderstorms today
- Mostly dry conditions expected through next week, with a few showers and storms possible around midweek
- Cool temperatures to start the week with warming temperatures through the week with temperatures in the mid to upper 70s/low 80s by the end of the week
Discussion
... Issued at 104 AM MDT Sat Sep 19 2026
|Low pressure will settle over eastern Idaho today. Will probably see a mix of sun and clouds today with occasional light rain showers ...