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| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Sunny | Mostly Cloudy | Snow | Chance of Rain | Mostly Sunny | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Snow and Rain | Rain and Snow | Mostly Sunny | Chance of Rain |
| Hi: 49°FHi: 9°C | Lo: 29°FLo: -2°C | Hi: 45°FHi: 7°C | Lo: 29°FLo: -2°C | Hi: 50°FHi: 10°C | Hi: 41°FHi: 5°C Lo: 21°FLo: -6°C | Hi: 41°FHi: 5°C Lo: 21°FLo: -6°C | Lo: 25°FLo: -4°C | Hi: 41°FHi: 5°C | Lo: 21°FLo: -6°C | Hi: 45°FHi: 7°C | Hi: 49°FHi: 9°C Lo: 25°FLo: -4°C |
| POP: 90% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 331 AM MDT Mon Oct 26 2026 
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Issued: 1119 PM MDT Sun Oct 25 2026
Key Messages
- Persistent southeast winds likely to continue through Monday night. A Lake Wind Advisory is in effect for Fort Peck Lake.
- Light rain is possible along the Yellowstone River from Terry to Sidney and points southeast at times Monday.
- Confidence is growing on more widespread rainfall by Tuesday into Wednesday, specific amount remains an open question.
Discussion
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Sustained winds have been approaching 30 mph with gusts near 40 mph across Fort Peck Lake overnight. Hi res models have more ...