Pendleton, OR – Eastern Oregon is in for a quick shift from damp to dry as scattered showers Thursday night give way to clear, chilly nights and bright sunshine into early next week. The main concern will be crisp fall lows in the upper 30s that could stress late-season crops and tender plants.
According to the National Weather Service in Pendleton, a 20 percent chance of showers lingers overnight into early Friday, but skies will clear by midday with highs climbing to the upper 60s. Winds will stay light out of the west at 5 to 10 mph. By Friday night, skies turn partly cloudy with lows dropping into the low 40s.
Saturday brings another round of isolated showers during the day, but conditions dry quickly by nightfall. Sunday through Tuesday will be dominated by sunshine and cooler nights. Highs will hold steady in the mid-to-upper 60s with lows in the upper 30s to low 40s. The clear pattern will allow for widespread radiational cooling, which could produce patchy frost in rural valleys by dawn on Sunday and Monday.
Travelers on I-84 and local highways can expect good driving conditions this weekend, though early morning fog and frost may create slick spots. Residents are urged to cover sensitive plants, bring pets indoors overnight, and dress in layers for wide temperature swings between chilly mornings and warm afternoons.
By midweek, the region may see clouds increase with another chance of showers returning late Wednesday into Thursday.
Five-Day Forecast for Pendleton, OR:
Fri: 68/44 – Clearing skies; breezy west wind late.
Sat: 66/41 – Spotty showers; clearing by evening.
Sun: 65/37 – Sunny, crisp; patchy frost risk early.
Mon: 67/37 – Sunny with cold dawn; frost risk in valleys.
Tue: 70/41 – Sunny, milder afternoon; chilly night.