"Refreshing Relief: Storms Bring Cooler Sunday"

An Excessive Heat Warning is in effect until 7 p.m. today south of St. Louis, with heat indices likely to reach 100-105. However, showers and storms could limit the warming and potentially cancel the warning early. Storms are moving southeastward in the area, with a chance of storm development this afternoon. Today's highs will be cooler, especially in the northern half of the region, with temperatures in the mid-80s. Sunday is expected to bring more favorable conditions, with decreasing cloud cover and highs in the low 80s.