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Whetstone Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
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| Snow | Partly Cloudy | Mostly Cloudy | Rain and Snow | Rain and Snow | Rain and Snow | Rain and Snow | Rain and Snow | Chance of Snow | Mostly Cloudy | Partly Cloudy | Mostly Cloudy |
| Lo: 25°FLo: -4°C | Hi: 45°FHi: 7°C | Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C | Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C | Lo: 30°FLo: -1°C | Hi: 36°FHi: 2°C | Lo: 26°FLo: -3°C | Hi: 36°FHi: 2°C | Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C |
| POP: 50% | POP: 20% | POP: 20% | POP: 20% | POP: 80% | POP: 80% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1224 PM MDT Wed Oct 28 2026 
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Issued: 1239 PM MDT Wed Oct 28 2026
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KEY MESSAGES:- Minor snow impacts possible tonight on Lolo, Lookout and Marias Passes
- Anticipate cooler temperatures and periods of valley rain and mountain snow through the weekend.
A low pressure system digging into the Pacific northwest coastline will continue to push a fetch of moisture into western Montana and north central Idaho this afternoon into tomorrow morning. The main plume of moisture will generally focus north of Interstate 90 tonight, with areas sough of Interstate 90 ...