CHICAGO (CBS) — Saturday will be partly sunny and hot but cooler by the lake. Storm activity will stay mainly far south in the morning, and the summer-like feel will continue with temperatures either side of 90 degrees.

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Isolated storms may pass through the area Sunday morning, but the real show begins in the afternoon and evening with the threat of strong to severe storms. There will be a threat level 2, which is a slight risk of severe storms, on a scale of 1 to 5. Large hail, damaging winds and heavy rain are the main concerns but isolated tornadoes are also possible.

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Summer officially begins Sunday at 10:32 p.m.

Monday’s temperatures will be refreshing as they tumble to below average in the 70s with a stray shower.
Forecast:
SATURDAY: Partly sunny.  HIGH: 91
SATIRDAY NIGHT: Mostly clear. LOW: 66
SUNDAY (Father’s Day): Mother Nature will deliver some heat and fireworks for Father’s Day with strong to severe storms developing in the afternoon and evening. HIGH: 90
MONDAY: Partly sunny and much cooler with a stray shower. HIGH: 76

CBS 2 Chicago Staff