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Garrison Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Rain and Snow | Mostly Clear | Mostly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Clear | Partly Cloudy | Chance of Rain | Patchy Fog | Mostly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 45°FHi: 7°C | Lo: 25°FLo: -4°C | Hi: 46°FHi: 8°C | Lo: 30°FLo: -1°C | Hi: 55°FHi: 13°C | Lo: 30°FLo: -1°C | Hi: 50°FHi: 10°C | Lo: 26°FLo: -3°C | Hi: 50°FHi: 10°C | Lo: 30°FLo: -1°C | Hi: 50°FHi: 10°C | Lo: 30°FLo: -1°C |
| POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 658 AM MST Thu Nov 05 2026 
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Issued: 216 AM MST Thu Nov 5 2026
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KEY MESSAGES:- Areas of fog or low clouds will remain through mid-morning or early afternoon.
- Light rain or snow is possible today (Thursday) and again on Sunday.
Satellite imagery clearly shows low clouds filling almost all valleys below 6,000 feet, while the mountains remain completely clear this morning. The persistent low clouds may linger through early this afternoon, limiting maximum warming due to strong inversions. For example, Missoula`s forecast high Wednesday was 36F, while...