An incoming upper level trof of low pressure is moving through Northcentral Washington this morning bringing gusty winds and low relative humidity to the Cascade Gaps and the lowlands east of it including the Wenatchee Valley and Waterville Plateau over to the Columbia Basin. This general trof pattern will maintain its positioning and be reinforced by weather disturbances dropping down from British Columbia into it, therefore the weather forecast continues to depict rather breezy conditions 10-20 mph with sunny skies and a subtle cooling trend with highs today in the upper 80’s.
Mostly sunny, breezy and even cooler on Friday with northwest winds tomorrow between 10-15 mph with afternoon high temperatures in the mid 80’s.
Dry weather and seasonal temperatures start off the weekend on Saturday with light winds, expect highs in the upper 80’s to near 90 degrees.
Weather conditions warm up in a big way beginning on Sunday as a strong ridge of high pressure builds and there remains little chance for precipitation. The ridge will allow hot desert southwest air to move up allowing to temperatures to rise into the mid to upper 90’s on Sunday, around 101 on Monday and 100 degrees on Tuesday under sunny skies and light winds.
Northcentral Washington will see a slight cool down on Wednesday but not much relief with afternoon high temperatures expected to still top out in the mid to upper 90’s.