Weather WorldAvalanche Lake, MT Weather Forecast
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Avalanche Lake Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  | |  |  |  | | |  | | |
| Chance of Showers | Chance of Showers | Snow Showers | Snow Showers | Patchy Fog | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Snow Showers | Snow Showers |
| Hi: 69°FHi: 21°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 19°FLo: -7°C | Hi: 50°FHi: 10°C | Lo: 21°FLo: -6°C | Hi: 55°FHi: 13°C | Lo: 21°FLo: -6°C | Hi: 55°FHi: 13°C | Lo: 25°FLo: -4°C | Hi: 55°FHi: 13°C | Lo: 25°FLo: -4°C |
| POP: 20% | POP: 20% | POP: 100% | POP: 100% | POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 AM MDT Thu Oct 22 2026 
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Issued: 120 AM MDT Thu Oct 22 2026
Key Messages
- Warm and mostly Dry conditions Today.
- Storm system late Tonight into Saturday morning brings lower elevation rain and mountain snow; greatest totals forecast west of Billings, with little to no precipitation over SE Montana.
- Elevated Fire Weather Concerns Southeast Montana Friday afternoon-evening.
- Windy conditions expected Friday into Saturday.
- Seasonal temperatures (highs in the 50s) and unsettled conditions (20-40% precipitation chances) Sunday through Wednesday. Uncertainty is hi...