After a much cooler day yesterday where highs only topped out in the upper 70’s, temperatures will rebound a bit this afternoon but remain about 5 to 10 degrees below normal for this time of year. Much of north Idaho and the Eastern third of Washington will be in the mid-70’s while places like Lewiston, Moses Lake, Wenatchee, and Moses Lake will top out in the lower 80’s. Bands of mid and high-level clouds are expected to accompany the passage of a shortwave weather system this morning into early this afternoon.
Our cool upper level weather system will push into the Dakotas by Friday and under sunny skies, widespread 80’s will return with Columbia Basin and Wenatchee Valley high temperatures climbing into the upper 80’s.
The desert southwest high-pressure ridge will amplify on Saturday leading to continued warming with afternoon highs to kick off our weekend into the Lower to mid-90’s.
A major heat wave will be upon us in earnest on Sunday, Monday and Tuesday with mostly sunny to sunny skies, light wind with afternoon high temperatures around 100 on Sunday, 102 on Monday and 100 degrees once again on Tuesday.
With three days of very hot temperatures, the National Weather Service may issue a heat advisory, or more by this weekend.