Weather WorldSun Lake, MT Weather Forecast
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Sun Lake Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  |  | | | | | | | | |
| Patchy Fog | Mostly Cloudy | Snow and Rain | Chance of Snow | Chance of Snow | Chance of Snow | Chance of Snow | Chance of Snow | Chance of Snow | Chance of Snow | Chance of Snow | Partly Sunny |
| Lo: 25°FLo: -4°C | Hi: 45°FHi: 7°C | Lo: 30°FLo: -1°C | Hi: 31°FHi: -1°C | Lo: 30°FLo: -1°C | Hi: 40°FHi: 4°C Lo: 25°FLo: -4°C | Hi: 40°FHi: 4°C Lo: 25°FLo: -4°C | Hi: 34°FHi: 1°C Lo: 21°FLo: -6°C | Hi: 34°FHi: 1°C Lo: 21°FLo: -6°C | Hi: 35°FHi: 2°C | Lo: 21°FLo: -6°C | Hi: 40°FHi: 4°C |
| POP: 50% | POP: 50% | POP: 20% | POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 657 PM MDT Sun Oct 25 2026 
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Issued: 725 PM MDT Sun Oct 25 2026
Key Messages
- Patchy to areas of dense fog will bring localized sharp visibility reductions across short distances and isolated slippery spots from frost deposition again tonight in Monday morning.
- Pacific weather systems will bring periods of light snow this week, most widespread over the higher terrain along the Continental Divide and southwest Montana Monday night into Tuesday.
- Temperatures will generally remain below average heading into the latter part of October.