Potomac, MT Weather Forecast
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Potomac Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Rain/Snow Showers | Chance of Showers | Chance of Showers | Patchy Fog | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 46°FHi: 8°C | Lo: 35°FLo: 2°C | Hi: 46°FHi: 8°C | Lo: 35°FLo: 2°C | Hi: 50°FHi: 10°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 50°FHi: 10°C | Lo: 35°FLo: 2°C | Hi: 46°FHi: 8°C | Lo: 35°FLo: 2°C |
| POP: 20% | POP: 50% | POP: 20% | POP: 30% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 102 AM MST Mon Nov 09 2026 

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Issued: 1227 AM MST Mon Nov 9 2026
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KEY MESSAGES:- Minimal Impacts Through Tuesday: Periodic light precipitation and breezy westerly winds.
- Mid-Week Valley Fog Potential: High pressure building on Wednesday and Thursday increase the likelihood of valley inversions.
- Wetter and Mild Weekend: A Pacific system will tap into atmospheric river moisture beginning late Friday.
Through Tuesday Night: A moist, zonal-to-southwesterly flow remains established across the Northern Rockies today. An initial, weak shortwave trough will...
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