St. Louis, Missouri – A strong cold front is on track to sweep across Missouri and Illinois by Thursday, ushering in a significant drop in temperatures and a distinct taste of autumn. Highs are expected to fall into the 60s for many areas, a noticeable shift from the recent summer heat. Overnight lows will be even more dramatic, with some areas seeing temperatures dip into the 40s.
According to the National Weather Service, the coolest period is anticipated to be from Thursday into Friday, with high confidence in the below-normal temperatures. While the cold snap is not expected to bring any significant rainfall, the shift in air mass is a clear sign that fall is on the horizon. The cooler weather will impact a wide swath of the Midwest, with residents from St. Louis to Chicago feeling the change.
In St. Louis, residents can expect afternoon highs to stay in the 60s, while nighttime temperatures will drop to the low 40s, especially in outlying areas. Similarly, Chicago will also see a substantial temperature drop, with highs only reaching the mid-60s by Thursday and Friday. While this cold snap is not a permanent change, it’s a good reminder for residents to prepare for the seasonal transition.
The forecast remains in flux for the next weekend, with some moderation in temperatures possible, but the cold air mass is expected to linger. Drivers should be mindful of the cooler temperatures and potential for damp conditions, though black ice is not a concern with these temperatures.
