The Inland Northwest will see mostly dry weather conditions today, but the next storm system is currently moving toward Northcentral Washington.
Today, the westerly flow turns southwesterly as a ridge of high pressure moves through the region, while the offshore weather front starts to move closer. Look for mostly middle to high clouds today and mild temperatures with Wenatchee Valley highs this afternoon in the mid 50’s.
By tonight into Friday the weather systems start to edge onshore. On Friday, precipitation chances increase to 20% by evening across much of the Inland Northwest as moisture pools along the front, expect afternoon highs in the lower 50’s. The amplified upper trough will begin ushering in Pacific moisture in earnest starting Friday night and continuing into Saturday. The focus of this rather narrow plume of moisture will be mainly over Eastern Washington into the Idaho Panhandle. The Wenatchee Valley will see mostly cloudy skies on Saturday with a 20% chance of rain showers with high temperatures slightly cooler down into the upper 40’s. Also expect breezy conditions across the Columbia Basin and the Palouse Saturday afternoon, with local gusts up to 25 mph.
Sunday through Wednesday, we will see drier weather with a broad Spring-like westerly flow aloft. Northcentral Washington will see mostly sunny to sunny skies with afternoon high temperatures in the upper 40’s to lower 50’s on Sunday and Monday warming into the mid 50’s by Wednesday.