A low-pressure weather system moving northeast along the coast is dragging a negatively tilted frontal zone across Eastern Washington and extreme North Idaho today. Because of that, expect a slight chance for mainly morning showers with mostly cloudy skies the rest of our Wednesday with highs later today in the lower 80’s.
For Thursday, inland ridging takes place allowing a persistent southwest flow pattern to keep forecast temperatures quite close to what would be considered normal for this time of year with afternoon high temperatures tomorrow in the lower to mid-80’s.
By Friday and all the way through next Tuesday, an upper ridge over the Four-Corners region of the desert southwest will be the dominant weather feature across the Western U.S. with a broad area of low pressure over the Eastern Pacific. High temperatures will likely be in the mid to upper 80’s across the lowlands during this timeframe, perhaps reaching near 90 degrees in the Moses Lake area and other parts of the Columbia Basin. These forecast high temperatures will be around or slightly warmer than normal for this time of year.
The Wenatchee Valley can expect mostly sunny skies through the 5-day period with high temperatures on Friday and through the weekend in the upper 80’s cooling back to the mid 80’s on Monday and Tuesday. Overnight low temperatures will be mild in the lower to mid 60’s.