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Cheff Lake Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | |  |  |  |  | | | | | |
| Clearing | Mostly Cloudy | Partly Cloudy | Patchy Fog | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Rain | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Cloudy |
| Hi: 46°FHi: 8°C | Lo: 35°FLo: 2°C | Hi: 46°FHi: 8°C | Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C | Lo: 30°FLo: -1°C | Hi: 46°FHi: 8°C | Lo: 35°FLo: 2°C | Hi: 50°FHi: 10°C | Lo: 35°FLo: 2°C | Hi: 50°FHi: 10°C | Lo: 35°FLo: 2°C |
| POP: 40% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 102 AM MST Sat Nov 07 2026 
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Issued: 106 AM MST Sat Nov 7 2026
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KEY MESSAGES:- Areas of valley fog/stratus into early next week.
- Scattered showers and gusty winds for Sunday.
- High pressure the middle of next week bringing more valley inversions, fog/stratus potential.
Today through Sunday Night:
A weak disturbance traversing the Northern Rockies this morning will trigger some light showers across northwest Montana. Thus far, considerable mid- to high-level cloud cover has largely suppressed fog and low stratus formation. However, localized patches ...