| NWS Forecast for: Grande Ronde Valley Issued by: National Weather Service Pendleton, OR Last Update: 401 AM PDT Sun Sep 20 2026 |  |
| Today: Sunny. Highs in the lower 80s. Light wind. Tonight: Clear. Lows in the upper 40s to lower 50s. Light wind. Monday: Sunny. Highs in the mid 80s. Southeast wind 5 to 10 mph. Monday Night: Partly cloudy. Lows in the upper 40s to lower 50s. Light wind. Tuesday: Partly cloudy. Highs in the lower 80s. Light wind. Tuesday Night Through Thursday Night: Partly cloudy. Lows in the lower 40s to lower 50s. Highs in the mid 70s to lower 80s. Friday: Mostly cloudy with a 20 percent chance of rain showers. Highs in the lower to mid 70s. Friday Night And Saturday: Mostly cloudy. Lows in the lower 40s. Highs in the mid 60s to mid 70s. | |
| Zone Forecast: Grande Ronde Valley | |
Visit your local NWS office at: https://www.weather.gov/pdt |