#Hermiston #weather 20260526 Mostly cloudy today with maybe some spotty drizzle. Cool, high near 19ºC. Clearing tomorrow and quite a bit warmer but the real spice comes Thursday. A strong upper level low is forecast to park in California on Thursday and this will spin up warm air and moisture into Eastern Oregon. Scattered t-storms are possible, though the higher chance of rain is in the mountains and toward Pendleton. Windy Friday with some lingering showers, sunny and mild this weekend. #ORwx