Chicago Weather: Severe Thunderstorm Warnings In Effect

CHICAGO (CBS)-- Dangerous heat continues and severe storms are on the way.

Winds gusting 70 miles per hour and quarter sized hail are the biggest storm threats. Isolated tornadoes are possible as well.

A Severe Thunderstorm Warning is in effect for DuPage, Kane and Will counties until 10:30 a.m.

A Severe thunderstorm warning is in effect for Lake, Cook and Will counties until 10:45 a.m. and Lake (IN) and Porter counties until 11:15 a.m.

A Severe Thunderstorm Warning is in effect for Grundy, Kendall and Kane counties until 9:45 a.m.

A Heat Advisory is in effect from noon to 7 p.m. as heat index values peak around 105 degrees.

Wednesday's temperatures will be in the low 90s with humid conditions.

The threat of severe storms increases by Wednesday night.

The same conditions continue into Thursday.

Temperatures drop to the low 80s by Friday and into the weekend.