Persistent rain, possible flooding and dangerous waves along Lake Michigan are expected Sunday.
Chicago residents are in for a wet and potentially hazardous start to summer.
Heavy rain is expected to soak the region throughout Sunday, bringing flooding concerns, possible thunderstorms and dangerous swimming conditions along Lake Michigan as the first full week of summer gets underway.
The gloomy weather arrives just as the Northern Hemisphere marks the summer solstice, which occurred early Sunday morning. Instead of sunshine on the longest day of the year, forecasters say much of the Chicago area will spend the day under cloudy skies with periods of steady rain.
Heavy rain could bring flooding concerns
Forecasters expect rain to persist across the Chicago area for most of Sunday, with the heaviest downpours likely to occur in communities along and south of Interstate 80.
Rainfall totals are forecast to range from 1 to 2 inches in many locations, although some areas could see even higher amounts if heavier bands of rain develop.
Parts of southern Illinois could also experience thunderstorms as the storm system slowly moves across the state. According to local forecasts, rain may continue into the early hours of Monday before conditions gradually improve.
The prolonged rainfall is raising concerns about flooding, particularly in areas where rivers and streams are already elevated from previous storms.
Officials are urging residents to monitor weather alerts and remain prepared in case water levels rise quickly. Low-lying areas and places with poor drainage may be especially vulnerable if rainfall totals exceed expectations.
Dangerous conditions expected on Lake Michigan
The weather system is also expected to create hazardous conditions along Lake Michigan.
As winds shift from the north and northeast, the National Weather Service has issued a beach hazard statement that takes effect Sunday evening and remains in place through much of Monday.
Forecasters warn that waves could reach heights of 4 to 7 feet, creating dangerous swimming conditions and increasing the risk of rip currents.
The advisory affects Cook County in Illinois as well as Lake and Porter counties in Indiana. Strong waves and currents could prompt officials to restrict access to some beaches or temporarily close them if conditions worsen.
Authorities are encouraging residents and visitors to stay informed before heading to the shoreline and to follow all posted warnings. Even experienced swimmers can struggle in rough water and rapidly changing lake conditions.
Cooler and sunnier weather on the way
After Sunday’s storm system moves out of the region, Chicago is expected to enjoy a far more pleasant stretch of weather.
The first full week of summer is forecast to bring abundant sunshine and temperatures that remain slightly below normal for this time of year.
Highs are expected to stay mainly in the 70s, offering comfortable conditions for outdoor activities after the soggy start to the season.
Forecasters say Monday should already see improving skies as sunshine returns to the area. Most of the week is expected to remain dry, although there is a slight chance of showers or thunderstorms on Wednesday.
Otherwise, calm weather and long summer evenings are expected to dominate the forecast.
With sunsets occurring around 8:30 p.m., Chicagoans will have plenty of opportunities to enjoy parks, patios and lakefront activities once the rain finally clears.
Summer begins with a dramatic weather swing
The transition from a stormy Sunday to a mild and sunny week highlights just how quickly weather patterns can shift in the Midwest.
While residents will need umbrellas and caution to start the season, the outlook beyond Monday offers a much more inviting picture.
For now, forecasters are advising Chicago area residents to stay alert for weather updates, avoid dangerous swimming conditions and use caution in areas prone to flooding.
If the forecast holds, the city’s soggy start to summer will soon give way to the kind of pleasant weather many have been waiting for all year.