John Jurgens

Make sure you are staying safe and cool as heat and humidity levels remain at dangerous levels, leaving compounding effects for days three and four of the heat wave Wednesday and Thursday. Extreme Heat Warnings remain in effect areawide. For southern Wisconsin and Carroll, Jo Daviess, and Stephenson Counties in Illinois: the warning expires Wednesday evening. For the rest of northern Illinois, including the Rockford metro, the warning expires Thursday night.

Dangerously high heat and humidity levels are continuing as we transition from June to July this week. Extreme Heat Warnings and Heat Advisories remain in effect across northern Illinois and southern Wisconsin through Wednesday evening. There is a high likelihood that these alerts are extended to Thursday as well. Tuesday is likely to be the hottest day of this heat wave, with highs in the mid 90s and heat index values reaching towards 110° in the afternoon.

A "heat dome" is setting up over the central and eastern U.S. next week, shaping up for intense heat and sweltering humidity across the Midwest in the days leading up to the Fourth of July. Enjoy some relatively cool weather to kick off the weekend with Saturday starting off in the upper 50s and warming to the upper 70s/low 80s in the afternoon. It will be the last fairly comfortable day for at least a week.