SEATTLE — Forecasters say Arctic air moving into the Northwest will push temperatures below normal in many areas into New Year's Day.
The Weather Service says the air is dry. Clear skies should keep significant snow away from Washington and Oregon until possibly next weekend when precipitation could return.
Winds on Monday will increase the wind chill, especially in the Columbia River Gorge where winds are expected in the 35 mph to 45 mph range with higher gusts.
The coldest temperatures are expected Monday night and Tuesday night. Generally this week, highs west of the Cascades will be in 30s and lows in the teens. It will be colder east of the Cascades with highs in the 20s and lows to zero.
Temperatures should moderate by the end of the week.