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Threemile Rapids Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
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| Mostly Cloudy | Cloudy | Cloudy | Partly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Rain Showers | Windy | Windy | Mostly Clear | Chance of Showers |
| Lo: 45°FLo: 7°C | Hi: 63°FHi: 17°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 67°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 36°FLo: 2°C | Hi: 57°FHi: 14°C Lo: 36°FLo: 2°C |
| POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Sun Oct 18 2026 
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Issued: 343 PM PDT Sun Oct 18 2026
Key Messages
- Warm and dry conditions through the next few days as an upper ridge prevails over the region.
- Cooler, wetter pattern in the midweek with split flow entering the region.
- Light mountain snow showers possible mid to late week (10-20%).
Discussion
... Satellite and radar indicate clear and dry conditions across the region as upper level ridge persists and continues to push to the east. High temperatures will continue to get warmer through Wednesday (>90% chance) with MaxTs climbing up to 1...