National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Excessive Rainfall Through This Weekend

Severe thunderstorms which can bring large hail, damaging winds, and isolated tornadoes will be possible over parts of the central U.S. through this weekend. Thunderstorms with heavy to excessive rainfall moving from Texas into the mid-Mississippi Valley through this weekend may produce areas of flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Mostly Cloudy

82°F

28°C

Humidity 74%
Wind Speed SW 12 mph
Barometer 29.88 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 6 Jun 10:50 am CDT
Extended Forecast for

Romeoville IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. West wind around 5 mph, with gusts as high as 10 mph.

    High: 88 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Mostly cloudy, with a low around 66. East wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 83. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 83 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 66 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 83. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 83 °F

    Chance
    T-storms then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.

    Low: 67 °F

    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 88. West wind around 5 mph, with gusts as high as 10 mph.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Mostly cloudy, with a low around 66. East wind 5 to 10 mph. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 83. East wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 83. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 80%.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.65°N 88.07°W
Last Update:
10:11 am CDT Jun 6, 2026
Forecast Valid:
11am CDT Jun 6, 2026-6pm CDT Jun 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation