Pendleton, Ore. – Dawn breaks crisp and clear across the Blue Mountains as the last hints of frost fade from car hoods. The air feels still but expect the calm to shift later today as another weak system nudges showers across eastern Oregon. The rain chances won’t last long, but they’ll briefly dampen midweek plans before clearer, cooler air settles in by Halloween.
According to the National Weather Service in Pendleton, clouds will increase this afternoon with a 20 percent chance of light rain late tonight. Showers become more likely early Wednesday, especially along the I-84 corridor between Pendleton and La Grande. Winds may gust near 20 mph in open areas, creating patchy drizzle and reduced visibility for morning drivers. By Wednesday evening, drier air returns with clearing skies expected Thursday.
Thursday will mark the beginning of a more stable stretch — partly sunny skies, light winds, and highs in the mid-50s. It’s shaping up to be a comfortable setup for Halloween Friday, with the evening trending dry and cool. Trick-or-treaters should plan for temperatures in the mid-40s by 7 p.m. under mostly cloudy skies.
Looking beyond Friday, the pattern hints at a shift toward cooler, wetter conditions as November begins. Models suggest a return of valley rain and higher-elevation snow showers by late weekend. After all, early November in eastern Oregon rarely stays this mild for long — winter’s first brush is never far away.
Five-Day Forecast for Pendleton, OR:
Tue: 58/37 – Partly sunny; cool breeze develops late.
Wed: 60/30 – Showers early, then clearing; breezy afternoon.
Thu: 54/30 – Mostly sunny; crisp and calm.
Fri: 58/42 – Mostly cloudy; dry Trick-or-Treat evening, cool air after sunset.
Sat: 66/41 – Increasing clouds; rain possible by late day.
