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| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY |
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| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C Lo: 45°FLo: 7°C |
| POP: 50% | POP: 20% | POP: 90% | POP: 100% | POP: 100% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 AM MDT Thu Sep 17 2026 
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Issued: 454 AM MDT Thu Sep 17 2026
Key Messages
- Trending warmer today, with several rounds of showers and a few thunderstorms across Southwest MT and vicinity today.
- Showers and thunderstorms become more numerous and spread further north Friday, with a few being capable of strong wind gusts, small hail, and at least briefly heavy rain.
- Precipitation continues into Saturday in most areas before a dry stretch begins Sunday into at least Monday.
Discussion
...- Meteorological Overview: An upper level low meandering in the vicinity of no...