| NWS Forecast for: Grande Ronde Valley Issued by: National Weather Service Pendleton, OR Last Update: 1003 PM PDT Mon Jun 8 2026 |  |
| Rest Of Tonight: Rain showers and a chance of thunderstorms. Lows in the mid 40s. South wind 5 to 15 mph. Chance of precipitation 90 percent. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday: Mostly cloudy. A chance of rain showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower to mid 60s. Breezy. West wind 10 to 20 mph with gusts to around 30 mph. Chance of precipitation 50 percent. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday Night: Mostly cloudy. A 50 percent chance of rain showers overnight. Lows around 40. Breezy. West wind 10 to 20 mph with gusts to around 30 mph. Rainfall amounts less than a tenth of an inch. Wednesday: Mostly cloudy with a 50 percent chance of rain showers. Highs in the lower to mid 60s. West wind 5 to 15 mph with gusts to around 25 mph. Wednesday Night: Clear. Lows in the mid to upper 30s. Northwest wind 5 to 10 mph. Thursday Through Friday: Clear. Highs in the mid 70s to lower 80s. Lows in the mid 30s to lower 40s. Friday Night Through Sunday Night: Mostly clear. Lows in the mid 40s to lower 50s. Highs in the upper 70s to mid 80s. Monday: Sunny. Highs in the upper 80s. | |
| Zone Forecast: Grande Ronde Valley | |
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