You may need the heat this weekend

A Frost Advisory has been issued for southern Wisconsin beginning early Saturday morning.  This includes the counties of Green, Rock and Walworth. 

Temperatures behind the cold front that came through Thursday afternoon have been quite chilly.  Highs this afternoon will only rise to the middle 50s as clouds increase from the southwest.  An upper level disturbance moving down the Rockies this morning will swing in our direction late this afternoon and evening.  This disturbance, combined with the cold air in place in the central Plains, has produced some light snow from eastern Colorado to western Nebraska.  While snow isn't in the forecast for us there may be a light sprinkle or even shower by this evening.  Temperatures tonight will drop into the low to mid 30s, depending on how quickly we clear from the cloud cover.  I do think there will be clouds to start the day Saturday as a reinforcing cold front comes through by the afternoon.  If there is cloud cover for the first half of Saturday temperatures may struggle to get out of the 40s. 

By Saturday night winds should lighten up enough to allow temperatures to drop into the upper 20s.  In fact, freezing temperatures are likely for a good chunk of the U.S. Saturday night as the jetstream dips all the way to Texas and the gulf states! 

A slight warm up will follow early next week with another cool down by the middle and end of the week.  Make sure you bundle up this weekend!  You may even have to turn on the heat!