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

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

A Few Clouds

32°C

90°F

Humidity 38%
Wind Speed W 19 km/h
Barometer 30.02 in
Dewpoint 16°C (61°F)
Visibility 16 km
Heat Index32°C (90°F)
Last update 3 Jul 1:45 pm CDT
Extended Forecast for

Romeoville IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 33. West wind around 10 km/h.

    High: 33 °C

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 21. West southwest wind 5 to 10 km/h becoming south southeast in the evening.

    Low: 21 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Independence Day

    Independence Day: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Partly sunny, with a high near 33. Heat index values as high as 36. South southwest wind 10 to 15 km/h, with gusts as high as 25 km/h. Chance of precipitation is 20%.

    High: 33 °C

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 22. South wind 10 to 15 km/h.

    Low: 22 °C

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 35. South southwest wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.

    High: 35 °C

    Hot

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 23.

    Low: 23 °C

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 31.

    High: 31 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 19.

    Low: 19 °C

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 30.

    High: 30 °C

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 33. West wind around 10 km/h.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 21. West southwest wind 5 to 10 km/h becoming south southeast in the evening.
Independence Day
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Partly sunny, with a high near 33. Heat index values as high as 36. South southwest wind 10 to 15 km/h, with gusts as high as 25 km/h. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 22. South wind 10 to 15 km/h.
Saturday
Mostly sunny and hot, with a high near 35. South southwest wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 23.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 31.
Sunday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 19.
Wednesday
A chance of showers. Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.65°N 88.07°W
Last Update:
1:56 pm CDT Jul 3, 2025
Forecast Valid:
2pm CDT Jul 3, 2025-6pm CDT Jul 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation