Chicago Weather

Timeline: What to Expect and When With Potential Rain, Storms Friday and Into Mother's Day Weekend

Heavy rainfall is expected to pick up Friday afternoon

NBC Universal, Inc. Alicia Roman has the latest forecast.

Wet weather will certainly put a damper on Friday plans, but Mother's Day weekend in the Chicago area likely won't be a wash out.

Here's a look at what to expect and when for each day of the weekend:

Friday

According to an alert from the National Weather Service, scattered showers, heavy rain and some thunderstorms are expected to develop Friday afternoon, stretching into the evening commute.

"Given the expected hit or miss nature of the heavier showers today, rainfall amounts could vary considerably over a short distance," the NWS says. "However, a couple isolated locations could pick up a quick couple inches of rain today that could result in a localized threat of flash flooding."

The NBC 5 Storm Team reports that most areas will rack up between a quarter-inch, and three-quarters of a inch of rainfall.

Around 7 p.m., the wet weather is expected to gradually come to an end, the NBC 5 Storm Team says.

Saturday

According to the NBC 5 Storm Team, Saturday is expected to remain mainly dry and partly sunny, but a severe threat will move in later in the day.

There is a chance for thunderstorms Saturday afternoon and evening, some of which could become severe, particularly for locations south and west of Chicago. The biggest threat for severe weather, however, comes late Saturday and into the overnight hours.

These storms will have the potential to bring damaging wind gusts of up to 60 mph, hail and heavy rain. The possibility of a tornado cannot be ruled out.

Sunday

The severe threat will continue overnight Sunday.

Rain will likely return during the afternoon hours and into the evening.

According to forecast models, the better chances for rain and storms Sunday are in the morning hours, but more rain could continue through the late afternoon and evening hours.

According to forecast models, Sunday is also expected to be cooler, with temperatures only reaching into the mid 60s.

This system will continue to develop and the NBC 5 Storm Team will continue to bring your the latest updates. Be sure to download the NBC Chicago app to stay up-to-date on severe weather alerts in your area.

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