Sumatra, MT Weather Forecast
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Sumatra Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Chance of T-Storm | Mostly Clear | Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 85°FHi: 29°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 81°FHi: 27°C | Lo: 51°FLo: 11°C | Hi: 89°FHi: 32°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C |
| POP: 20% | POP: 30% | POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 AM MDT Mon Sep 07 2026 

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Issued: 1237 AM MDT Mon Sep 7 2026
Key Messages
- Thunderstorms through this morning will be capable of producing localized heavy rain, gusty winds, and hail. The risk of strong to severe thunderstorms will decrease through this morning.
- Windy conditions are expected Monday into Tuesday (wind gusts of 25 to 50 mph, strongest in south-central MT Monday and eastern MT Tuesday). This will cause elevated fire weather conditions.
- Warm, dry, and windy conditions possible Thursday. This could bring elevated fire weather conditions.
- After a...
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