A flat ridge of high pressure can be seen on satellite under a west-northwest air-flow pattern. Northcentral Washington weather for today will be sunny, a bit breezy at times and warmer with afternoon high temperatures in the lower to mid-70’s.
On Wednesday, will see the ridge strengthening overhead and temperatures warming about 5-7 degrees for most locations, topping out almost 10 degrees above seasonal average. After a predominately westerly flow, winds will shift to a more southerly or southeasterly flow just above the surface by late Wednesday as the ridge begins shifting east. Tomorrow will be the warmest and probably calmest day of our forecast period with increasing clouds late and high temperatures in the mid to upper 70’s.
The ridge of high pressure will hold on for one more day on Thursday but as a trough of low-pressure approaches, winds will increase ahead of the weather system that move through the region Thursday night. Thursday weather will be mild and breezy with afternoon highs in the mid 70’s.
As the cold front moves through Thursday night there is a 40% chance of rain followed by much cooler temperatures and a 30% chance of rain on Friday with high temperatures in the lower to mid-60’s.
By Saturday and Sunday our weather quiets down with mostly sunny skies each day and afternoon highs in the mid 60’s Saturday and upper 60’s on Sunday.
Mostly sunny skies and breezy weather for Monday with high temperatures in the lower 70‘s.