Weather WorldCook Lake, MT Weather Forecast
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Cook Lake Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | | | | |  |  | | | | |
| Rain Showers | Chance of Showers | Rain Showers | Rain Showers | Rain Showers | Chance of Showers | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 51°FHi: 11°C | Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C | Lo: 41°FLo: 5°C | Hi: 50°FHi: 10°C | Lo: 30°FLo: -1°C | Hi: 55°FHi: 13°C | Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C | Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C | Lo: 31°FLo: -1°C |
| POP: 20% | POP: 20% | POP: 30% | POP: 100% | POP: 90% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1236 AM MDT Sat Oct 31 2026 
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Issued: 110 AM MDT Sat Oct 31 2026
Key Messages
- Widespread fog is likely through this morning across much of the region; and again Saturday night into Sunday.
- The chance of precipitation has increased today ahead of the late weekend weather system, although precip amounts remain light.
- A weather system will bring widespread precipitation (70-90% chance) and breezy conditions (20-40 mph) Sunday into Monday.
- Stronger winds are possible over the Bighorn foothills and along the Dakota border Monday. There is a 60% chance for gusts gre...