National Weather Service United States Department of Commerce

A cold front passing through the area will cause temperatures to fall during the afternoon. This means today's high temperatures for many will occur before noon. Temperatures plummet tonight with lows in the teens to 20s and wind chills 5 to 10 degrees cooler than those.
Next week will start off cold before rebounding by Tuesday. Though confidence in exact temperatures is low, temperatures will likely drop to below normal again by late week. Graphic shows forecast for St. Louis, though trends elsewhere are similar.
Confidence is increasing that we'll see the coldest air of the season next weekend. Exact temperatures, however, are still uncertain. What should you do in the meantime? Make sure loved ones without heat will be safe next weekend, and keep up to date on the forecast.