• Cold temperatures and gusty winds associated with an arctic airmass will continue dangerously cold wind chills as far south as Brownsville, Texas and central Florida. This arctic airmass will affect the eastern two-thirds of the country on Monday as a sharp cold front moves towards the East Coast. The cold temperatures will remain in place through mid-week before a warming trend begins.
• Today: Partly sunny. Highs around 15 below. Northwest winds 15 to 20 mph. Wind chill readings 45 below to 55 below zero.
• Tonight: Partly cloudy in the eve

ning...then mostly cloudy with a 20 percent chance of light snow after midnight. Lows around 20 below. Temperature rising into the mid single digits below zero after midnight. West winds 5 to 10 mph shifting to the southwest after midnight. Coldest wind chill readings 30 below to 40 below zero in the evening.
• Tuesday: Not as cold. Mostly cloudy. A 20 percent chance of light snow in the morning. Highs zero to 5 above. Southeast winds up to 5 mph shifting to the north around 5 mph in the afternoon.
• Tuesday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows around 15 below. North winds around 5 mph. Wind chill readings 15 below to 25 below zero.
• Wednesday: Partly sunny. Highs zero to 5 above. Northeast winds up to 5 mph shifting to the southeast in the afternoon. Coldest wind chill readings 15 below to 25 below zero in the morning.
• Wednesday Night And Thursday: Not as cold. Mostly cloudy. Lows around 5 below. Highs around 20.
• Thursday Night Through Sunday: Partly cloudy. Lows around 15. Highs around 30.