High pressure will continue to build in over the Inland Northwest today bringing benign weather conditions with temperatures well above normal all across Northcentral Washington. An upper level trough of lower pressure moving down from the Gulf of Alaska will dig in just off of the west coast resulting in a highly amplified longwave pattern at upper levels.
In the meantime, the weather forecast for today and tomorrow calling for sunny skies today with highs in the upper 50’s to near 60 degrees and partly cloudy skies on Thursday with afternoon high temperatures in the mid 50’s.
As the weather system pushes into western Washington late Thursday night we will see a 30% chance of rain overnight and into Friday morning with highs on Friday, still mild, in the lower 50’s.
Saturday will be an in-between storm systems day with mostly sunny skies and high temperatures in the lower 50’s.
The dry and warmer than normal weather comes to an end on Sunday and into early next week as a long-wave trough of low pressure along the Pacific Coast moves onshore. Mostly cloudy on Sunday with a 20% chance of rain developing Sunday night with highs back to normal into the upper 40’s.
There is a slight chance for a shower or two on Monday with highs in the upper 40’s. Partly cloudy weather on Tuesday with afternoon high temperatures in the upper 40’s.