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Marsh Lake Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
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| Chance of T-Storm | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Sunny | Partly Cloudy | Chance of Showers | Rain Showers | Chance of T-Storm | Rain/Snow Showers |
| Hi: 65°FHi: 18°C | Lo: 31°FLo: -1°C | Hi: 71°FHi: 22°C | Lo: 39°FLo: 4°C | Hi: 71°FHi: 22°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 30°FLo: -1°C |
| POP: 40% | POP: 30% | POP: 60% | POP: 60% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 420 AM MDT Wed Sep 23 2026 
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Issued: 436 AM MDT Wed Sep 23 2026
Key Messages
- Scattered showers and storms early this morning; isolated t-storms in Eastern Montana this afternoon.
- Warm and dry end of the work week; 80s return.
- Slight chance (<30%) for showers and thunderstorms Friday into Saturday.
- Unsettled and cooler Sunday into early next week.
Discussion
...
Next 7 Days...
Right now a shortwave is moving from SW to NE out of the Bighorn Basin into MT. As the morning goes on, moisture will continue to be advected into our CWA by ESE winds out of the Great Plains where dew points are in the 50s to 60s. This increased ...