Seattle weather: Cold weather advisory issued

Seattle weather: Clear skies bring below freezing overnight lows

FOX 13 Seattle Meteorologist Ilona McCauley says mostly clear skies this week in western Washington will bring chilly overnight low temperatures.

Seattle - The wintry precipitation is wrapping up, but the cold air is settling in across western Washington. We will see some of the coldest temperatures so far this season early this week as temperatures fall to around 20 degrees in western Washington. Make sure you are prepared for the freezing nights and mornings.

Coldest air of the season heading our way early this week.

Temperatures are expected to drop 10 to 20 degrees below normal this week.

By the numbers:

Temperatures are expected to cool to between 10 and 20 degrees by the early mornings, so watch for icy spots with leftover moisture from melting snow. Patchy fog is also possible and with temperatures below freezing there will likely be freezing fog. Use caution during to morning commuting hours.

Map showing cold weather advisory beginning tonight.

Dangerously cold temperatures are on the way beginning tonight through Wednesday morning.

Winds will pick up throughout the day on Monday and bring a cooler, drier air mass. The Fraser outflow will bring cold air to Whatcom County. Easterly winds will push more cool air into the rest of the Puget Sound.