The warning will be in effect for DuPage, Kane, Kendall and Will counties until 4 p.m. The warning in Cook County has been canceled as of 3:07 p.m., NSW says.
The storm is expected to produce winds up to 60 MPH and possible hail.
Dime size hail has been reported in Inverness and Carpentersville, as well as Bensenville, according to NWS. The largest hailstones reported have been an inch in diameter in Batavia, according to NSW.
Brookfield is also experiencing heavy rain, as of 2:50 p.m.
Dark clouds began to roll into the Chicago area just after 2 p.m. Saturday. ABC7 meteorologists said Saturday would be mostly sunny with a few storms with highs in the upper 80s.
You can always get your 7-Day forecast at ABC7Chicago.com/weather.
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