The west-southwest zonal flow over the next few days will keep the region dry with modest weather change. The winds will be light throughout Northcentral Washington during the day, with a slight rise in the Cascade Gaps tonight and tomorrow night. There is very little in temperature change over the next two days. Under sunny skies each day afternoon highs will be near, to just above normal, with highs temperatures in the upper 80’s throughout most of our area.
A ridge of high pressure begins to move into the region on Thursday bringing stable weather with sunny skies and once again afternoon high temperatures in the upper 80’s.
The ridge axis gets pushed to the east as a low-pressure system from the Gulf of Alaska moves into northern Canada on Friday. However, because of compressional heating, Friday looks to be the warmest day in our forecast with afternoon highs in the lower 90’s.
On Saturday, the trough of low pressure will begin to carve out across the northwest. Weather for Saturday and under sunny skies, our daytime temperatures will be above average, or in the upper 80’s to around 90 degrees.
By the end of the weekend on Sunday, the Canadian weather system will bring in a northwesterly weather flow which will cool our temperatures about 5-10 degrees with afternoon highs Sunday only in the lower 80’s.
Sunny and still cooler than normal on Monday with afternoon high temperatures in the lower to mid-80’s.