At the start of the week, a cold spell will affect the Midwest and move eastward into the Northeast. On Monday, highs in some of the northern Midwest states may not even make it out of the teens. Meanwhile, lows are expected to reach the single digits in the coldest areas. The cold temperatures will spread into the Northeast by Tuesday.
Temperatures will start to improve by midweek, with highs getting above freezing in most of the Midwest by Wednesday or Thursday. A few of the southern states may see temperatures reach the 60s (or even 70s in some parts of Texas) during this time, which, although not unusual for this time of year there, is still an improvement compared to the beginning of the week.
Looking outside of temperatures, much of the US will see dry and sunny weather for the first few days of the week. On Thursday, a shortwave trough will start moving across the Plains and produce rain and thunderstorms in the southeastern Plains states. This will advance eastward across the South over the next day or so. It remains to be seen whether any storms will be severe, as the Storm Prediction Center notes that predictability is low at this time.
