Chicago, Illinois – Steady showers and thunderstorms will continue across northern Illinois—especially for communities north of I-80—through Friday, with a significant shift to cooler, drier weather expected this weekend.
According to the National Weather Service Chicago, today brings scattered showers and storms with highs between 71°F and 79°F, and overnight lows near 50°F. Thursday offers a brief break, featuring partly cloudy skies and temperatures rising to 81°F before storms return late. Friday marks the next round of showers and thunderstorms, with highs in the mid-60s to upper 70s and cooler conditions near the lakefront. Overnight lows drop to the mid-40s.
For cities including Evanston, Waukegan, Rockford, and neighborhoods along and north of I-80, expect periodic heavy rain and lightning, which may cause temporary street flooding and hazardous driving conditions. IDOT advises extra caution on wet roads and urges residents to monitor for localized flooding. If thunder is heard, remain indoors until conditions clear.
As the weekend arrives, Saturday turns much cooler and drier, with highs only in the mid-50s to mid-60s and lows in the low 40s. Lingering early morning showers are possible. Sunday features partly sunny skies and a continued cool trend, with temperatures in the mid-60s to low 70s.
Showers and thunderstorms may briefly return on Friday, but overall, drier and cooler air settles in for the weekend. Residents should stay alert for updated advisories as conditions evolve through Sunday.