Colstrip, MT Weather Forecast
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Colstrip Weather Forecast
| REST OF TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Mostly Cloudy | Patchy Fog | Patchy Fog | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 81°FHi: 27°C | Lo: 50°FLo: 10°C |
| POP: 90% | POP: 100% | POP: 80% | POP: 70% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 938 AM MDT Thu Sep 17 2026 

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Issued: 941 AM MDT Thu Sep 17 2026
Key Messages
- Isolated to scattered showers and thunderstorms this afternoon and evening. Locally heavy rain possible over SE Montana with any showers/thunderstorms.
- A few strong thunderstorms are possible, mainly around and east of Billings Friday afternoon and evening.
- High chance for widespread precipitation Friday afternoon through the weekend, with the potential for locally heavy rainfall through Saturday night.
- Chance for at least half an inch of rainfall is greater than 70 percent across so...
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