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Arminto Weather Forecast
| THIS AFTERNOON | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  |  |  | |  |  |  | | | |
| Sunny | Mostly Clear | Windy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Showers Likely | Clearing | Chance of T-Storm | Chance of T-Storm | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 35°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C |
| POP: 80% | POP: 80% | POP: 90% | POP: 20% | POP: 60% | POP: 40% | POP: 60% | POP: 60% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 PM MDT Fri Oct 09 2026 
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Issued: 1223 PM MDT Fri Oct 9 2026
Key Messages
- Warm temperatures and gusty southwest winds lead to widespread elevated to critical fire weather conditions Friday afternoon and evening.
- An unsettled weekend is in store for the Cowboy State as multiple weather systems impact the area. Expect rounds of showers and a few thunderstorms throughout the weekend with accumulating snow possible in the highest elevations above 10,000 ft.
- Cooler temperatures arrive Saturday night. Some low elevations across the Bighorn Basin could possibly s...