National Weather Service United States Department of Commerce

Flash flooding possible for parts of Upper Midwest

A slow-moving weather system progressing from the northern Plains to the Great Lakes will bring excessive rainfall and a risk of flash flooding to portions of the Upper Midwest on Friday. The heaviest rainfall is expected from central Iowa northeastward across southeastern Minn. and into Wisc. Rainfall totals of 1-2 inches, with locally-higher amounts, are possible through Saturday morning.
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Hazardous Weather Conditions

Current Conditions

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New Lenox IL

7 Day Forecast

For More Weather Information:

Chicago, IL Local Forecast Office

This
Afternoon

Scattered Thunderstorms Chance for Measurable Precipitation 50%

Scattered
Thunderstorms

High: 84 °F

Tonight

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 70 °F

Saturday

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 80 °F

Saturday
Night

Patchy Fog

Patchy
Fog

Low: 67 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 84 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 69 °F

Labor
Day

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 82 °F

Monday
Night

Chance Thunderstorms

Chance
Thunderstorms

Low: 65 °F

Tuesday

Slight Chance Thunderstorms

Slight Chc
Thunderstorms

High: 81 °F

Detailed Forecast

  • This Afternoon Scattered showers and thunderstorms. Partly sunny, with a high near 84. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
  • Tonight A 30 percent chance of showers and thunderstorms. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 70. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
  • Saturday Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 80. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
  • Saturday Night Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 67. Southwest wind 5 to 10 mph.
  • Sunday Mostly sunny, with a high near 84. Southwest wind around 5 mph.
  • Sunday Night Partly cloudy, with a low around 69.
  • Labor Day Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
  • Monday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
  • Tuesday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81.
  • Tuesday Night Partly cloudy, with a low around 64.
  • Wednesday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
  • Wednesday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65.
  • Thursday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.