Hot and humid conditions will remain Monday, including to the lakefront. Afternoon heat indices will top out in the 98-105° range during the afternoon. Remember to practice heat safety! The heat will come to an end tonight, especially for areas north of I-80, with a round of thunderstorms for some areas. Heavy rainfall and flooding are possible with these storms.
Chances for showers and thunderstorms will increase through this afternoon as a cold front approaches. Very heavy rainfall is possible.
On Tuesday the front will not clear the area. Additional storms could have very heavy rains, with some potential flooding. There could be some marginally strong storms south of I-80.
Meanwhile north of I-80 it will be much cooler on Tuesday. The cooler conditions will spread a bit farther south Wednesday with a decreasing chance of showers and thunderstorms.