A strong Canadian cold front is expected to dump snow on the mountain passes this weekend and mire the Inland Northwest in frigid temperatures next week.
The National Weather Service reports snow will begin in the mountains late Sunday, falling rapidly overnight and making travel treacherous along the Cascades as the holiday weekend ends Monday morning. Forecasters also expect rough conditions at Sherman Pass and Lookout Pass in northern Washington and Idaho on Sunday night.
Rain is likely for the Spokane area Sunday, switching over to light snow Monday. Accumulation is not expected to top a half-inch, then the chill will set in.
High temperatures in the latter part of next week may not climb out of the teens, with lows potentially plummeting into the single-digits. The last time high temperatures failed to reach the 20-degree mark was in February 2011, according to the National Weather Service.
While records may fall in some areas, unprecedented low temperatures likely won’t be seen in Spokane. Record lows for the first week of December dip below zero, according to National Weather Service data.
In addition, a stagnant air advisory remains in place for much of the region through Saturday at 4 p.m. High levels of pollutants sitting over the area due to light winds and cold temperatures could aggravate those with allergy and sinus issues.