A ridge of high pressure continues to be the weather-driver across the Inland Northwest. Northcentral Washington weather forecast today expect sunny skies, a light southeast breeze and warmer temperatures with afternoon highs this afternoon in the lower to mid-50’s as the cold-air inversion finally erodes away.
Late tonight a trough of low pressure will begin to move onshore and we will see an increased chance of rain or snow at the crest of the Cascades. The weather system will move into our area beginning early Friday morning with a 30% chance of rain, breezy winds by afternoon with clearing skies and afternoon high temperatures in the mid to upper 50’s. By Friday evening the winds will be decreasing and skies will be clearing. The potential for low clouds and fog will once again be an issue towards Saturday morning.
For Halloween on Saturday and through Monday, the ridge of high-pressure pumps back up across the Columbia Basin and Wenatchee Valley. Each day we can expect mostly sunny skies and above normal temperatures with highs in the mid to upper 50’s.
By Tuesday, an upper level area of low pressure will slide into the Gulf of Alaska and Northcentral Washington will being to change to a zonal flow pattern. We can expect Cloudy skies for Tuesday with a 30% chance of rain during the day and a 40% chance by evening with warm high temperatures near 60 degrees. There will also be a slight chance of rain on Wednesday but warm once again with afternoon high temperatures near 60 degrees.