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| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | 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 | Partly Cloudy | Chance of Rain | Partly Cloudy | Mostly Clear |
| Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 44°FLo: 7°C | Hi: 51°FHi: 11°C | Lo: 42°FLo: 6°C | Hi: 61°FHi: 16°C | Hi: 63°FHi: 17°C Lo: 41°FLo: 5°C | Hi: 63°FHi: 17°C Lo: 41°FLo: 5°C | Lo: 43°FLo: 6°C | Hi: 64°FHi: 18°C | Lo: 42°FLo: 6°C | Hi: 63°FHi: 17°C Lo: 43°FLo: 6°C |
| POP: 50% | POP: 70% | POP: 70% | POP: 100% | POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1052 PM MDT Thu Sep 17 2026 
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Issued: 1151 PM MDT Thu Sep 17 2026
Key Messages
- Several rounds of showers/thunderstorms today, mainly impacting SW MT.
- Increased shower/thunderstorm coverage tomorrow, with a few capable of producing strong wind gusts, small hail, and heavier showers.
- The potential for periods of heavier precip at times tomorrow and Saturday are causing a minor risk for flash flooding.
Discussion
... /Issued 811 PM MDT Thu Sep 17 2026/- Meteorological Overview:
The upper level low, which is currently over the PNW, will continue to bring southerly flow...