Flagstaff Reservoir, MT Weather Forecast
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Flagstaff Reservoir Weather Forecast
| REST OF TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Chance of Snow | Chance of Snow | Partly Cloudy | Sunny | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Snow and Rain | Rain and Snow | Rain and Snow | Rain and Snow |
| Lo: 30°FLo: -1°C | Hi: 41°FHi: 5°C | Lo: 23°FLo: -5°C | Hi: 41°FHi: 5°C | Lo: 22°FLo: -6°C | Hi: 41°FHi: 5°C | Hi: 41°FHi: 5°C Lo: 25°FLo: -4°C | Hi: 41°FHi: 5°C Lo: 25°FLo: -4°C | Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C | Lo: 25°FLo: -4°C | Hi: 41°FHi: 5°C |
| POP: 100% | POP: 20% | POP: 30% | POP: 20% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 956 PM MDT Mon Oct 26 2026 

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Issued: 551 PM MDT Mon Oct 26 2026
Key Messages
- Fog will continue to clear out during the afternoon.
- A storm system will bring light mountain snow and light rain/snow at lower elevations late tonight into Tuesday morning.
- Cooler and an slightly unsettled weather pattern continues through the rest of the week.
Discussion
... /Issued 220 PM MDT Mon Oct 26 2026/- Meteorological Overview:
Current satellite trends show fog and lower clouds are lifting out of Southwest MT as warmer air mixes down to the surface. Across North-Central MT, pat...
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