Pinnacle Reservoir, OR Weather Forecast
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Pinnacle Reservoir Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Increasing Clouds | Rain Showers | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 83°FHi: 28°C | Lo: 54°FLo: 12°C | Hi: 72°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 43°FLo: 6°C | Hi: 69°FHi: 21°C Lo: 43°FLo: 6°C | Hi: 75°FHi: 24°C | Hi: 76°FHi: 24°C Lo: 47°FLo: 8°C | Hi: 76°FHi: 24°C Lo: 47°FLo: 8°C | Lo: 48°FLo: 9°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 90% | POP: 80% | POP: 40% | POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 AM MDT Tue Sep 01 2026 

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Issued: 610 AM MDT Tue Sep 1 2026
Key Messages
- Convective potential increases today and Wednesday with isolated to scattered thunderstorms mainly across the mountains of central Idaho and eastern Oregon.
- A strong low pressure system later this week will bring cooler and windier conditions with periods of showers and thunderstorms, especially to Oregon and west-central Idaho.
Aviation
/12Z Tuesday through Wednesday/... Issued 604 AM MDT TUE SEP 1 2026 VFR. Locally reduce visibility from a wildfire located southwest of KBKE as well a...
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