Mosby, MT Weather Forecast
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Mosby Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY |
| Chance of Rain | Chance of Rain | Cloudy | Rain | Rain | Partly Cloudy | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 51°FHi: 11°C | Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 51°FHi: 11°C | Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C |
| POP: 50% | POP: 50% | POP: 90% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 416 AM MDT Sat Oct 31 2026 

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Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 300 AM MDT Sat Oct 31 2026
Key Messages
- Patchy fog will lingers through this morning.
- Light rain spreads north in the afternoon, continuing into trick or treating hours.
- Precipitation chances will increase on Monday as a frontal system moves across the region.
Discussion
... Upper ridge over the northern plains will slowly drift eastward through the weekend as an upper trough digs into the western states. Southwest flow and weak embedded shortwaves will bring periodic chances for rain into the region.
Light rain is expected t...
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