First Lake, MT Weather Forecast
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First Lake Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY |
| Windy | Patchy Fog | Patchy Fog | Mostly Cloudy | Widespread Fog | Widespread Fog | Chance of Rain | Chance of Rain | Patchy Fog | Partly Cloudy | Partly Cloudy | Mostly Cloudy |
| Lo: 30°FLo: -1°C | Hi: 46°FHi: 8°C | Lo: 35°FLo: 2°C | Hi: 46°FHi: 8°C | Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C | Lo: 30°FLo: -1°C | Hi: 46°FHi: 8°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C |
| POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 102 PM MST Fri Nov 06 2026 

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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 137 PM MST Fri Nov 6 2026
Discussion
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KEY MESSAGES:- Periods of valley fog and low clouds (stratus), especially in western Montana.
- A weather system will bring showers, light rain or snow, and high-elevation snow on Sunday.
- High pressure next week bringing more valley inversions.
Another weak disturbance will be moving through the Northern Rockies this afternoon into the evening. This feature should help lift and break up some of the fog and low stratus across the region, but it will not complete break up the valley inver...
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