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Parker Reservoir Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY |
 |  | |  |  | |  |  | | | |  |
| Chance of T-Storm | Chance of Rain | Rain | Chance of T-Storm | Chance of Rain | Chance of T-Storm | Clearing | Chance of Rain | Chance of Rain | Chance of Rain | Chance of T-Storm | Chance of Rain |
| Lo: 43°FLo: 6°C | Hi: 53°FHi: 12°C | Lo: 43°FLo: 6°C | Hi: 53°FHi: 12°C | Lo: 36°FLo: 2°C | Hi: 56°FHi: 13°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 43°FLo: 6°C | Hi: 60°FHi: 16°C |
| POP: 60% | POP: 100% | POP: 90% | POP: 80% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 449 PM PDT Tue Sep 01 2026 
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Issued: 431 PM PDT Tue Sep 1 2026
Key Messages
- There is a slight chance of thunderstorms along the Cascades and Cascade foothills this afternoon.
- An unusually strong system for early September will bring wetting rain to the region with gusty winds along the coast Wednesday.
- Rock slides are possible along highways 42, 138 and 38.
- Pockets of frost are possible tonight east of the Cascades.
- Temperatures will be 15 to 25 degrees cooler than normal Wednesday and Thursday.
- Cooler conditions with shower chances persisting into early nex...