Weather WorldDeerhead Lake, MT Weather Forecast
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Deerhead Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | | |  |  |  |  |  | | | |
| Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Rain | Chance of T-Storm | Snow and Rain | Chance of Snow | Partly Cloudy | Partly Cloudy | Chance of Snow | Snow and Rain |
| Hi: 57°FHi: 14°C | Lo: 34°FLo: 1°C | Hi: 56°FHi: 13°C | Lo: 37°FLo: 3°C | Hi: 56°FHi: 13°C | Lo: 33°FLo: 1°C | Hi: 39°FHi: 4°C | Lo: 20°FLo: -7°C | Hi: 40°FHi: 4°C Lo: 24°FLo: -4°C | Hi: 40°FHi: 4°C Lo: 24°FLo: -4°C | Hi: 44°FHi: 7°C | Lo: 27°FLo: -3°C |
| POP: 20% | POP: 90% | POP: 90% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 AM MDT Tue Oct 20 2026 
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Issued: 502 AM MDT Tue Oct 20 2026
Key Messages
- Temperatures will be a roller coaster over the next several days with a mid-week warmup followed by another drop to near or slightly below seasonal averages for the weekend.
- Rain and Mountain snow will overspread the region Friday into Saturday bringing healthy liquid precipitation to lower elevations and accumulating snowfall above 4kft.
- Gusty winds develop across the area Friday afternoon into early Saturday morning. Highest gusts will be across Central MT and the Hi-Line.