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Thermopolis Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  | | | | |  |  |  | |
| Mostly Clear | Mostly Sunny | Partly Cloudy | Clearing | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Clearing |
| Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 80°FHi: 27°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 60°FHi: 16°C |
| POP: 30% | POP: 40% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 647 PM MDT Wed Sep 23 2026 
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Issued: 435 PM MDT Wed Sep 23 2026
Key Messages
- Isolated showers across northern portions of the area dissipate around sunset this evening.
- Dry and warmer conditions are expected Thursday through Saturday with mostly clear to partly cloudy skies. Southwest winds will become stronger and gusty (15-25 mph) Friday and Saturday.
- Sunday will see increasing clouds with isolated showers over the northwest WY mountains. Winds will remain breezy from the southwest in the afternoon and evening.
- A storm system is expected to move through wes...