Weather WorldChief Joseph State Park, WA Weather Forecast
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Chief Joseph State Park Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  |  |  |  | | | |  | | |
| Partly Cloudy | Clearing | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of T-Storm | Chance of Showers | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 50°FLo: 10°C | Hi: 76°FHi: 24°C | Lo: 57°FLo: 14°C | Hi: 80°FHi: 27°C | Lo: 57°FLo: 14°C | Hi: 70°FHi: 21°C | Lo: 53°FLo: 12°C | Hi: 66°FHi: 19°C | Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 73°FHi: 23°C |
| POP: 40% | POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 40% | POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 205 PM PDT Sun Aug 30 2026 
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Issued: 1246 PM PDT Sun Aug 30 2026
Key Messages
- Trending warmer and drier into early next week. Temperatures will be in the 80s Monday and Tuesday.
- Active weather returns mid week. Wetter conditions with widely scattered rain showers. There is a 50-70% chance of at least a quarter of an inch of rain Wednesday through Wednesday night in the mountains.
- Gusty southerly winds Wednesday afternoon across the Columbia Basin and Okanogan Valley may result in visibility reductions from blowing dust.
Discussion
... Sunday night through Tuesda...