Weather Report

Weather Report

Fall weather will arrive in Chicago this weekend, with cooler temperatures mixing with rain.

After a cloudy start to the day today--with some rain hitting the south part of the region--the sun came out this morning. But things will start changing this afternoon, according to ChicagoWeatherCenter.com, as a cold front moves in from the northwest.

Temperatures will fall, breaking a string of 15 straight days in which the temperatures averaged about 7 degrees above normal, and rain will begin.

That rain is likely to stick throughout the afternoon, with most of the accumulation in the southern part of the region. The National Weather Service said that the areas south of the Kankakee and Illinois rivers are most likely to get potentially severe thunderstorms, while areas farther north will get more scattered rainfall.

If you're headed to Friday night's Bruce Springsteen concert at Wrigley Field, it'd be wise to bring something to fend off both the cool night air and raindrops. According to a spokesman for Jam Productions, which is producing the event, umbrellas aren't allowed because they can block spectator's views. So pack your ponchos and hats.

The rain is expected to end sometime this evening, but the cool temperatures will stay for the coolest weekend we've had since mid-May. Look for highs in the low 70s on Saturday and Sunday with winds out of the northwest and north. The overnight temperatures could drop into the 40s.

The good news is that there is no rain in the forecast for the Chicago Bears NFL home opener against Indianapolis at noon Sunday at Soldier Field.

chicagobreaking@tribune.com

Twitter: @ChicagoBreaking