Sumatra, MT Weather Forecast
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Sumatra Weather Forecast
| REST OF TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
| Sunny | Increasing Clouds | Clouds | Mostly Cloudy | Mostly Sunny | Mostly Cloudy | Clouds | Partly Cloudy | Sunny | Partly Cloudy | Sunny | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1015 AM MST Sat Nov 07 2026 

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Issued: 1014 AM MST Sat Nov 7 2026
Key Messages
- Periods of windy conditions over south-central Montana today into Sunday.
- Gusty crosswinds may impact travel along Interstate 90 from Big Timber to Livingston and Highway 191 from Big Timber through Judith Gap this morning and Sunday morning.
- Mostly dry with above normal temperatures over the next 7 days.
Discussion
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Next 7 Days..
Ridging will continue to build into the Western CONUS over the next few days as an area of low pressure moves out of the four corners region into the southe...
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