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

61°F

16°C

Humidity 63%
Wind Speed NE 13 mph
Barometer 30.27 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 May 11:45 am CDT
Extended Forecast for

Romeoville IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 65. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 69. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely. Mostly cloudy, with a low around 54. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 73. Northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 73 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 65. East northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 48. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 69. East northeast wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Showers likely. Mostly cloudy, with a low around 54. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday
Mostly cloudy, with a high near 73. Northwest wind around 10 mph, with gusts as high as 15 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 56.
Memorial Day
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 83.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.63°N 88.07°W
Last Update:
10:11 am CDT May 21, 2026
Forecast Valid:
12pm CDT May 21, 2026-6pm CDT May 27, 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