The cool trough that produced showers and thunderstorms yesterday will move slowly through western and central Montana today. Northcentral Washington will experience a dry weather day with a good deal of sunshine and warmer temperatures with highs today in the upper 70’s.
A cold front will surge across central and eastern Washington during the middle of the afternoon Thursday. The afternoon will be windy with a 40% chance of scattered showers and a few thunderstorms with highs tomorrow in the upper 60’s. West or southwest winds are expected to increase by late-morning to 15 to 25 mph from Wenatchee across the Columbia Basin onto the Palouse and Spokane area.
For Friday, a cool upper trough will be overhead leading to seasonably breezy weather and cool temperatures with afternoon highs in the upper 60’s to near 70 degrees.
Expect winds on Friday 10-20 mph. With the exit of the low-pressure system, a strong ridge of high pressure will build over the Pacific Northwest on Saturday with a strengthening, secondary high pushing temperatures well above normal throughout the Memorial Day weekend. Saturday weather will be sunny and warmer with afternoon highs in the upper 70’s.
The warming trend really kicks into gear by Sunday, Monday and Tuesday with sunny skies each day and afternoon high temperatures in the mid 80’s on Sunday and into the lower 90’s on Memorial Day and Tuesday.