Chicago, IL – A late-season heatwave is expected to grip much of the Midwest next week, with temperatures running above seasonal averages from September 17 through September 23.
According to the National Oceanic and Atmospheric Administration’s (NOAA) Climate Prediction Center, a large portion of the central and eastern United States is forecast to experience higher-than-normal temperatures during the period. The outlook shows the strongest likelihood of heat stretching from the Great Plains through Illinois, Indiana, and into the Southeast.
While much of the country will be warmer than average, NOAA projects the Midwest as one of the core regions most likely to feel the heat. The map highlights a 50–70% chance of above-normal conditions across Illinois, Iowa, Missouri, and surrounding states. This surge marks what could be the final significant heatwave of the summer season before fall weather patterns begin to settle in.
The western United States, including California and the Pacific Northwest, is also expected to remain warmer than average. In contrast, parts of the central Rockies and the Northeast are projected to stay near normal.
Meteorologists note that late-season heat can still impact agriculture, energy demand, and outdoor activities across the region. Residents are encouraged to take precautions during the upcoming warm spell, especially vulnerable groups such as children, older adults, and those working outdoors.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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