THE HEAT WAVE FINALLY BREAKS DOWN
SPRINGFIELD (WICS) - The unseasonably hot stretch of record-breaking temperatures hangs around for one more day before much cooler fall weather finally settles into central Illinois to finish out a very dry September.
Temperatures will once again soar toward the low 90s flirting with potentially record breaking highs on Tuesday. A few spotty showers could pop up in the afternoon as the heat and humidity builds. But the better chance for showers -- which is slim, at best -- will hold off until Tuesday evening and early Wednesday morning when a moisture-starved cold front slides through the state with only a few stray showers possible and perhaps a rumble of thunder or two.
Much cooler air quickly spills in behind the departing front and temperatures will take a big swing with highs back into the upper 70s Wednesday afternoon and noticeably cooler overnight lows plunging into the upper 40s and low 50s by early Thursday morning.
September 2017 will go into the record books as the second driest September of all-time in the Capital City. After the spotty shower chances Tuesday through early Wednesday, there's not a rain cloud in sight for the rest of the week. High pressure will dominate for mostly sunny skies through the weekend with a return to cooler and more seasonable temperatures.
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THE 7-DAY TEMPERATURE OUTLOOK: Look for highs in the low 90s Tuesday; and, mid to upper 70s Wednesday through Monday. Overnight lows will fall to the low 60s Tuesday night; upper 40s Wednesday through Saturday night; and, mid 50s Sunday night.
Joe Crain - Storm Team 20 Meteorologist
THE HEATWAVE BREAKS THIS WEEK
Champaign (WCCU) - Our heatwave continues through Tuesday. Expect a high on Tuesday once again around 90-degrees. An incoming frontal boundary from the northwest will begin to move across mid Illinois later Tuesday evening and overnight to usher in much cooler conditions for the rest of the week. We don't expect any chances for showers as the front passes through the area, as conditions are quite dry.
On Wednesday under partly cloudy skies we'll see highs fall to the upper 70s. Highs will fall to the mid 70s on Thursday, and fall even further to around 70-degrees on Friday. Overnight lows will also fall similarly, staring the week in the mid 60s, then falling by the end of the week to the mid 40s.
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Today's Record Temperatures