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Lewistown Weather Forecast
| REST OF TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | |  |  | | | | | | | |
| Partly Cloudy | Chance of Showers | Partly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Clear | Clear | Sunny |
| Lo: 39°FLo: 4°C | Hi: 49°FHi: 9°C | Lo: 30°FLo: -1°C | Hi: 45°FHi: 7°C | Lo: 21°FLo: -6°C | Hi: 45°FHi: 7°C | Hi: 51°FHi: 11°C Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1227 AM CST Thu Nov 12 2026 
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Meteorlogic Glosserator
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Issued: 240 AM CST Thu Nov 12 2026
Key Messages
- Temperatures remain below average through the weekend with the coldest temperatures so far this season and widespread hard freezes. Temperatures will warm to average next week.
- Aside from isolated showers/drizzle today, dry conditions are expected through mid-next week.
Aviation
/00Z TAFS THROUGH 06Z FRIDAY/... Issued at 1037 PM CST Wed Nov 11 2026
VFR flight conditions are expected through the forecast period at all local terminals. There is a low chance (10-20%) for brief, light showe...