Box Elder, MT Weather Forecast
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Box Elder Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Mostly Clear | Mostly Clear | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C Lo: 49°FLo: 9°C | Lo: 41°FLo: 5°C |
| POP: 20% | POP: 50% | POP: 100% | POP: 100% | POP: 90% | POP: 70% | POP: 20% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 PM MDT Sat Sep 05 2026 

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Issued: 602 PM MDT Sat Sep 5 2026
Key Messages
- Showers and thunderstorms tonight and Sunday, become a more widespread rainfall Sunday night into Monday.
- An isolated severe storm possible Sunday.
- Cool temperatures to begin the week, with some warmer afternoon temperatures for a few days mid week.
Discussion
... /Issued 244 PM MDT Sat Sep 5 2026/- Meteorological Overview: A slow moving upper level low will remain to our west through Sunday, before slowly moving eastward Sunday night into Monday. Expect waves of showers/thunderstorms t...
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