(Greenwood forecast)
Monday, Jan 12More Details/AccuPop™ Milder with abundant sunshine Low: 31 °F High: 58 °F
Tuesday, Jan 13More Details Colder with plenty of sunshine Low: 28 °F High: 42 °F
Wednesday, Jan 14More Details Mostly sunny and warmer Low: 27 °F High: 52 °F
Thursday, Jan 15More Details Mostly sunny Low: 19 °F High: 38 °F
Friday, Jan 16More Details Sunny and chilly Low: 23 °F High: 42 °F
Saturday, Jan 17More Details Partial sunshine Low: 31 °F High: 51 °F
and........

Arctic air floods Chicago to New York City
Arctic air bottled up over Alaska is being unleashed over the Midwest and will soon follow into the East. The cold air will spread southeastward in two waves this week. The second surge threatens to be the harshest and farthest reaching.
The first shot of arctic air is already plunging into the northern Plains behind a clipper system. The bitterly cold air will spread across the Midwest and Deep South on Tuesday and the Northeast on Wednesday.
The second blast of cold will come from farther north in the arctic. It will follow close behind the first, spreading into the northern Plains on Wednesday. On Thursday and Friday, the coldest air of the season will spread across the Midwest and then the East.
Gusty, northwest winds will create dangerously cold AccuWeather AccuWeather.com RealFeel® temperatures with both arctic blasts. Residents of the central and northern Plains got a taste of those winds early Monday, when gusts climbed as high as hurricane force.
RealFeel® temperatures by tonight will plummet to below minus 30° in the northern Plains, including in Fargo, International Falls and Duluth. This extreme cold poses a serious danger to people and pets. On top of the threat of hypothermia, frostbite could set in in only a matter of minutes.
How cold the air will feel on Monday may pale in comparison to Wednesday's RealFeel® temperatures in the northern Plains, when the second surge of arctic air arrives.
By Thursday, Chicago will have a high within a few degrees of zero and a low temperature below zero.
That latter blast of arctic air will hit the East late in the week and could hold the high temperature in the teens in New York City. Temperatures may dip below zero at night, a feat not achieved in the city since Jan. 19, 1994.