PENDLETON, Ore. – Eastern Oregon’s mild fall stretch turns active this weekend, with frost likely Saturday morning followed by rain and gusty winds on Sunday. The National Weather Service warns residents to prepare for slippery conditions early Sunday along I-84 and nearby mountain passes as showers increase.
According to the National Weather Service in Pendleton, clear skies and calm winds Friday night will allow temperatures to drop near freezing by daybreak Saturday. Drivers should watch for frost on windshields and bridges, particularly in rural valleys and low-lying areas. After the cold start, Saturday will turn sunny and mild with highs near 66°F — a brief calm before Sunday’s weather shift.
By early Sunday, a Pacific front moves inland, bringing widespread rain chances up to 70 percent across Pendleton, Hermiston, and La Grande. Breezy winds up to 25 mph will accompany the system, especially in open areas and along the Columbia Plateau. Those traveling on U.S. 395 and I-84 should anticipate reduced visibility and slick road surfaces.
Monday brings a quick rebound with sunshine and highs in the low 60s, marking a pleasant start to the new week. Another weak system could approach midweek, keeping fall’s wet rhythm in play.
Five-Day Forecast for Pendleton, Oregon:
- Friday: Mostly sunny and breezy, high near 66°F.
- Saturday: Morning frost, mostly sunny, high near 66°F.
- Sunday: Rain likely, breezy, high near 62°F.
- Monday: Sunny, high near 63°F.
- Tuesday: Partly sunny, high near 68°F.
