I-84 Corridor Weather: Gusty Winds and Passing Showers Give Way to Calm Halloween in Eastern Oregon

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PENDLETON, Ore. – The wind hums through the open plains of eastern Oregon before dawn, rattling fences and sweeping loose leaves across quiet streets. A cold drizzle streaks the glass, but by the time commuters hit I-84, brighter skies begin to push in from the west.

The National Weather Service in Pendleton reports that rain and gusty winds will taper quickly this morning as a Wind Advisory expires by 6 a.m. West winds could still gust near 30 mph before easing into the afternoon. Roads may remain slick through the morning commute, so drivers should allow extra time and watch for water pooling along rural highways.

By midday, clouds will thin and sunshine will return. Temperatures climb toward 59°F, marking the start of a calmer stretch across the Columbia Plateau. Tonight turns cool and mostly clear with lows dipping near 30°F—chilly enough for early frost patches in sheltered valleys.

Thursday and Friday stay dry, bright, and seasonably mild with highs in the mid-50s. Trick-or-treaters across Pendleton, Hermiston, and smaller Umatilla County towns can expect excellent Halloween weather—dry sidewalks, light winds, and crisp autumn air around 50°F by dusk.

Showers may edge back into the region Saturday, but the pattern remains tame heading into early November. To be fair, it’s the kind of steady, slow transition typical for Oregon’s inland valleys—fall rain giving way to clearer skies before the next front arrives.

After all, Daylight Saving Time ends at 2 a.m. Sunday, when clocks fall back and evenings darken—a quiet sign that winter is stirring just beyond the horizon.


Five-Day Outlook for Pendleton, OR:
Wed: 59/29 – Rain early, then clearing and breezy.
Thu: 54/29 – Sunny and calm.
Fri: 57/41 – Partly sunny; cool Halloween evening.
Sat: 67/38 – Clouds increase; 50% chance of rain.
Sun: 58/35 – Partly sunny; mild and dry finish to weekend.