Triangle Reservoir, ID Weather Forecast
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Triangle Reservoir Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Blowing Dust | Sunny | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 62°FLo: 17°C | Hi: 90°FHi: 32°C | Hi: 88°FHi: 31°C Lo: 63°FLo: 17°C | Hi: 88°FHi: 31°C Lo: 63°FLo: 17°C | Hi: 88°FHi: 31°C Lo: 63°FLo: 17°C | Hi: 85°FHi: 29°C Lo: 58°FLo: 14°C | Hi: 85°FHi: 29°C Lo: 58°FLo: 14°C | Hi: 84°FHi: 29°C Lo: 58°FLo: 14°C |
| POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 PM MDT Sat Aug 22 2026 

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Issued: 213 PM MDT Sat Aug 22 2026
Key Messages
- Scattered showers and strong thunderstorms in south-central Idaho through this evening. Isolated showers and weaker thunderstorms elsewhere in western Idaho until sunset. Clearing in eastern Oregon.
- Gusty outflow winds up to 50 mph from thunderstorms in south- central Idaho through sunset.
- Dry and slightly cooler Sunday, then several degrees warmer again Monday with a chance of afternoon thunderstorms in southern areas.
Aviation
/18Z Saturday through Sunday/... Issued 1227 PM MDT SAT A...
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