WALLA WALLA -- Button up, winter isn't done with us yet.
An active weather system sweeping into the area will bring a good chance of rain and possibly even snow today and Wednesday. But that's only the beginning.
According to the National Weather Service, come Thursday forecasters are predicting an arctic air mass will push into the region, causing temperatures to plunge
In a special weather statement today, the weather service said "high temperatures will struggle to reach freezing in the warmest locations Thursday through Saturday while low temperatures will range from sub-zero in the mountains to single digits in the lower Columbia Basin."
Lows on Thursday and Friday night are forecast to drop into the teens while daytime highs Friday and Saturday are expected to stay below freezing.
In addition to the cold temperature, snow accumulations will be possible Thursday and Friday at all elevations with some significant accumulations also being possible in the mountains, the weather service warned.