| NWS Forecast for: Grande Ronde Valley Issued by: National Weather Service Pendleton, OR Last Update: 1132 PM PDT Sun Jun 21 2026 |  |
| Rest Of Tonight: Clear. Lows in the mid to upper 40s. Light wind. Monday: Sunny. Highs in the mid 80s. Light wind, becoming north 5 to 10 mph in the afternoon. Monday Night: Mostly clear. Lows in the upper 40s to lower 50s. North wind 5 to 15 mph. Tuesday: Sunny. Highs in the upper 80s. Light wind. Tuesday Night: Partly cloudy. Lows in the upper 40s to lower 50s. Northwest wind 5 to 10 mph. Wednesday Through Thursday: Mostly clear. Highs in the mid 80s to lower 90s. Lows in the lower 50s. Thursday Night: Partly cloudy with a 30 percent chance of rain showers. Lows around 50. Friday: Rain showers and a chance of thunderstorms. Highs around 70. Chance of precipitation 80 percent. Friday Night: Rain showers likely and a chance of thunderstorms. Lows in the mid 40s. Chance of precipitation 70 percent. Saturday Through Sunday: Mostly cloudy with a 40 percent chance of rain showers. Highs in the 60s. Lows in the upper 30s to mid 40s. | |
| Zone Forecast: Grande Ronde Valley | |
Visit your local NWS office at: https://www.weather.gov/pdt |