Grant, MT Weather Forecast
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Grant Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Freezing Drizzle | Rain | Snow | Patchy Fog | Mostly Clear | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Rain and Snow | Rain and Snow | Mostly Sunny |
| Lo: 39°FLo: 4°C | Hi: 39°FHi: 4°C | Lo: 31°FLo: -1°C | Hi: 43°FHi: 6°C | Lo: 25°FLo: -4°C | Hi: 45°FHi: 7°C Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C Lo: 29°FLo: -2°C | Hi: 41°FHi: 5°C Lo: 25°FLo: -4°C | Hi: 41°FHi: 5°C Lo: 25°FLo: -4°C | Hi: 41°FHi: 5°C |
| POP: 100% | POP: 100% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 PM MDT Sat Oct 31 2026 

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Issued: 815 PM MDT Sat Oct 31 2026
Key Messages
- Periods of dense fog will continue through Sunday morning, most widespread over central and north-central Montana.
- Precipitation becomes more widespread by Sunday, with accumulating snow most prevalent over the higher terrain of southwest Montana Sunday night into Monday morning.
- Temperatures trend closer to average next week.
Discussion
... /Issued 554 PM MDT Sat Oct 31 2026/- Meteorological Overview:
Low level easterly flow continues to support low stratus and areas of dense fog develo...
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