BOONE CREEK NEAR MC HENRY

USGS 05549000

HEAT ADVISORY
* WHAT...Peak heat index values this afternoon of 100 to locally 110 degrees. * WHERE...Portions of north central and northeast Illinois and northwest Indiana. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Today, A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind around 5 mph.

Tomorrow, A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southwest wind around 5 mph.