| NWS Forecast for: Grande Ronde Valley Issued by: National Weather Service Pendleton, OR Last Update: 1002 PM PDT Thu May 21 2026 | |
| Rest Of Tonight: Mostly clear. Lows in the lower 40s. Light wind. Friday: Sunny. Highs in the upper 70s. Light wind. Friday Night: Mostly clear. Lows in the lower to mid 40s. North wind 5 to 10 mph in the evening, becoming light. Saturday: Partly cloudy. Highs in the lower 80s. Light wind. Saturday Night: Partly cloudy. Lows in the mid to upper 40s. West wind 5 to 10 mph. Sunday And Sunday Night: Mostly clear. Highs in the lower 80s. Lows in the mid to upper 40s. Memorial Day: Partly cloudy with a 20 percent chance of rain showers. Highs in the upper 70s. Monday Night: Windy. Rain showers likely. Lows around 40. Chance of precipitation 70 percent. Tuesday And Tuesday Night: Mostly cloudy with a 50 percent chance of rain showers. Highs in the upper 50s. Lows around 40. Wednesday: Mostly cloudy with a 40 percent chance of rain showers. Highs in the mid 60s. Wednesday Night And Thursday: Partly cloudy with a 20 percent chance of rain showers. Lows in the lower 40s. Highs in the mid 60s to lower 70s. | |
| Zone Forecast: Grande Ronde Valley | |
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