Olson, MT Weather Forecast
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| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Chance of Rain | Rain | Chance of Rain | Chance of Rain | Rain and Snow | Snow | Chance of Snow | Chance of Snow | Chance of Snow | Rain and Snow | Mostly Cloudy | Rain and Snow |
| Hi: 50°FHi: 10°C | Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C | Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C | Lo: 23°FLo: -5°C | Hi: 45°FHi: 7°C | Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C | Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C | Lo: 26°FLo: -3°C |
| POP: 20% | POP: 70% | POP: 70% | POP: 70% | POP: 100% | POP: 80% | POP: 40% | POP: 30% | POP: 30% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1228 AM MDT Mon Oct 26 2026 

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Issued: 408 AM MDT Mon Oct 26 2026
Discussion
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KEY MESSAGES:- Anticipate cooler temperatures and periods of precipitation this week.
Current satellite and radar is showing the low pressure system starting to move onshore over Washington this morning. This system will continue to move eastward bringing widespread precipitation to the Northern Rockies later today and overnight. Snow levels tonight are expected to lower to around 4000-5000 feet allowing for accumulating snow in the higher terrain. The latest model guidance is indicat...
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