After a chilly day on Saturday, the worst of the cold will arrive starting tonight….continuing into early Tuesday. Wind chill warnings will affect all of KELOLAND and wind chills in far northeast SD could drop as low as -60 with this cold snap.
First, tonight’s forecast will feature partly cloudy skies and areas of light snow in western KELOLAND. Lows will drop to -23 in Aberdeen, -13 in Sioux Falls, -8 at Pierre, and -5 in Rapid City. Overnight winds will be generally 5-15 mph.
The real cold starts tomorrow as stronger NW winds develop at daybreak over northwestern KELOLAND. Winds will increase 20-35mph much of afternoon and wind chills are expected to drop to -40 or lower during the afternoon. Highs will stay below zero in nearly all of KELOLAND, with coldest temperatures expected in the northeast where Aberdeen will see a high of -14.
The worst of the cold will arrive Sunday night, as breezy weather continues and lows drop to 20 below zero or lower in much of eastern KELOLAND. Folks around Watertown and Milbank could drop to near -30, with wind chills of -55 to -60 at dawn on Monday.
The winds will be breezy on Monday and highs will struggle between -10 and -15 above in most locations East River. West River will be slightly warmer, but far from warm with highs around 5 in Rapid City.
Tuesday morning will still be bitterly cold, but we are hoping the mercury will lift above zero late Tuesday, marking an end what will be some memorable cold. The trends look much better for the rest of next week as we make steady improvements on the temperatures each day. By Saturday, highs in the 30s and 40s will be possible once again in many areas.
There is a hint of some accumulating snowfall by next Sunday in KELOLAND. We are still a few days away on that event, but it appears we’ll have to start watching some moisture returning this direction as the weather warms.