Storms in Chicago on Friday afternoon

CHICAGO (CBS) — Following a few strong thunderstorms in northwest Indiana Friday afternoon, dry, pleasant weather returns overnight through much of the day Saturday; however, a significant weather pattern change will impact your Sunday plans.
High temperatures soar to 90 in Chicago on Saturday under mostly sunny skies. A few late-evening thunderstorms are possible, but most remain dry.
On Sunday, a more impactful storm brings cooler, wetter weather, with periods of rain guaranteed at times throughout the day. A few showers linger Monday and Tuesday next week as unseasonably cool weather returns for a change. High temperatures hover in the 60s.
Northerly winds persist next work week, leading to continued cooler, pleasant weather.
Tonight: Partly cloudy and mild. Low: 64
Saturday: Hot and dry, then a few late-evening storms. High: 90
Sunday: Cooler with periods of rain and thunderstorms. High: 74