• Arctic air will continue to spread through the eastern two-thirds of the U.S. this week, with high temperatures as much as 20 to 30 degrees below normal in some locations. In the northern Plains and Upper Midwest, the cold temperatures combined with gusty winds will lead to dangerous wind chills. Also, these gusty winds will create areas of blowing and drifting snow leading to blizzard conditions.
• Today: Windy. Mostly sunny. Areas of blowing snow through the day. Highs 15 to 20. Southwest winds 15 to 20 mph shifting to the northwest 20 to 30 mph with gusts to around 40 mph in the after

noon.
• Tonight: Mostly clear. Areas of blowing snow in the evening. Lows around 20 below. North winds 10 to 20 mph with gusts to around 40 mph decreasing to 5 to 10 mph after midnight. Coldest wind chill readings 30 below to 40 below zero after midnight.
• Thursday: Colder. Mostly sunny. Highs zero to 5 above. Southeast winds 5 to 15 mph. Coldest wind chill readings 30 below to 40 below zero in the morning.
• Thursday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows around 10 below. East winds 5 to 15 mph. Wind chill readings 20 below to 30 below zero.
• Friday: Mostly cloudy. Highs 5 to 10 above. North winds 5 to 15 mph.
• Friday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows around 15 below.
• Saturday And Saturday Night: Colder. Mostly cloudy with a 30 percent chance of light snow. Highs around 5 below. Lows around 15 below.
• Sunday: Mostly cloudy with a 20 percent chance of light snow. Highs zero to 5 above.
• Sunday Night And Monday: Mostly cloudy. Lows around 15 below. Highs zero to 5 above.