Clark, MT Weather Forecast
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Clark Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Partly Sunny | Mostly Cloudy | Chance of Rain | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 80°FHi: 27°C Lo: 49°FLo: 9°C | Hi: 80°FHi: 27°C Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1137 AM MDT Wed Sep 30 2026 

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Issued: 1215 PM MDT Wed Sep 30 2026
Key Messages
- Seasonable temperatures today and tomorrow, with a brief warm up through this weekend.
- Generally dry through next week, with light rain showers dissipating this evening.
Discussion
...- Meteorological Overview:
Zonal flow aloft will continue throughout today, before weak ridging begins to build off to the west tomorrow. This will allow temperatures to remain seasonable today and tomorrow, with highs in the mid 60s to low 70s across much of the CWA. Some areas north of the Hi-Line will se...
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