A ridge of high pressure residing over the region this morning will begin to flatten and shift east by this afternoon. Stable weather conditions under the ridge combined with an abundance of boundary layer moisture will continue to promote areas of low clouds and fog. Northcentral Washington weather today will be partly cloudy with increasing clouds late, afternoon high temperatures in the low 40’s.
A potent weather system and warm front will swing through the region late tonight into Tuesday bringing clouds and a 50% chance of rain and mild temperatures with highs tomorrow in the upper 40’s.
A weak ridge weather pattern will flatten into a zonal flow pattern on Wednesday. A quick moving trough of low pressure pushes through the region Thursday and early Friday. Moisture from the system is expected to begin to spill over the Cascades crests late Wednesday and bring snow showers to the passes. The shower chances will spread across the Inland Northwest through Thursday before tapering off over the weekend.
Wednesday weather will feature increasing clouds with a 60% chance of late-evening showers and with highs in the low 40’s.
Thanksgiving Thursday looks wet with cloudy skies, an 80% chance of rain and mild with highs in the mid 40’s.
Morning rain is also a possibility for Friday morning with partly cloudy conditions by afternoon and warmer with high temperatures in the low 50’s.
Besides a small chance for shower Saturday, the weekend looks nice with partly cloudy skies each day and mild with highs in the upper 40’s to lower 50’s.