National Weather Service United States Department of Commerce

Severe weather expected for Upper Midwest on Wednesday

A potent storm system will bring a chance of severe thunderstorms to parts of the Upper Midwest on Wednesday and Wednesday night. Very large hail, damaging wind gusts, tornadoes and heavy rain are possible with these storms.
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Hazardous Weather Conditions

Current Conditions

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3 Miles N Mundelein IL

7 Day Forecast

For More Weather Information:

Chicago, IL Local Forecast Office

Overnight

Patchy Fog

Patchy
Fog

Low: 59 °F

Wednesday

Patchy Fog

Patchy
Fog

High: 82 °F

Wednesday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 69 °F

Thursday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 89 °F

Thursday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 72 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 77 °F

Friday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 60 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 70 °F

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 53 °F

Detailed Forecast

  • Overnight Patchy fog. Otherwise, mostly clear, with a low around 59. West southwest wind around 5 mph becoming calm.
  • Wednesday Patchy fog before 7am. Otherwise, mostly sunny, with a high near 82. Light and variable wind becoming south 5 to 10 mph in the morning.
  • Wednesday Night A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. South wind around 10 mph, with gusts as high as 15 mph.
  • Thursday A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89. Heat index values as high as 96. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 30 mph.
  • Thursday Night A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
  • Friday A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
  • Friday Night A slight chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 20%.
  • Saturday Mostly sunny, with a high near 70.
  • Saturday Night Mostly clear, with a low around 53.
  • Sunday Sunny, with a high near 72.
  • Sunday Night Mostly clear, with a low around 53.
  • Monday Sunny, with a high near 73.
  • Monday Night Partly cloudy, with a low around 58.
  • Tuesday A chance of showers and thunderstorms. Partly sunny, with a high near 73.