By Mary Kay Kleist

CHICAGO (CBS) — Scattered showers moving through the Chicago area Thursday evening were rather weak.

Clouds And Radar: 06.17.21

(Credit: CBS 2)

But an explosive complex was along the state line between Minnesota and Wisconsin Thursday evening, moving to the southeast. It will move into our area very early Friday morning, particularly between the 3 a.m. to 6 a.m. timeframe.

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The strongest cells may contain damaging winds and very heavy rain.

A severe thunderstorm watch is in place until 4 a.m. for much of Wisconsin all the way down to the Illinois state line, including Kenosha County and places to the north.

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4 a.m. Friday; 06.17.21

(Credit: CBS 2)

6 a.m. Friday; 06.17.21

(Credit: CBS 2)

7 a.m. Friday; 06.17.21

(Credit: CBS 2)

The low Thursday night is 71 with muggy conditions.

Rain moves away by mid-morning Friday, and a very hot and humid air mass will be in place with highs in the low to mid 90s. There will be another isolated storm chance in the heat of the afternoon.

Highs Tomorrow: 06.17.21

(Credit: CBS 2)

On Saturday, it will be sunny and hot with a high of 91.

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7 Day Forecast: 06.17.21

(Credit: CBS 2)

On Father’s Day Sunday, the first day of summer, there is a 40 percent chance of afternoon storms with a high of 90.

Mary Kay Kleist