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

21°F

-6°C

Humidity 49%
Wind Speed W 12 mph
Barometer 30.21 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 17 Mar 12:45 pm CDT
Extended Forecast for

Romeoville IL

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 24. West southwest wind around 10 mph.

    High: 24 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Snow, mainly after midnight. Low around 21. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Chance Snow
    then Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 43. South wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 43 °F

    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Increasing clouds, with a low around 34. West southwest wind around 5 mph becoming south after midnight.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 52. South wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.

    High: 52 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 24. West southwest wind around 10 mph.
Tonight
Snow, mainly after midnight. Low around 21. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Wednesday
A 30 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 43. South wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 34. West southwest wind around 5 mph becoming south after midnight.
Thursday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 52. South wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Mostly cloudy, with a high near 58.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly cloudy, with a high near 63.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
1:21 pm CDT Mar 17, 2026
Forecast Valid:
1pm CDT Mar 17, 2026-6pm CDT Mar 23, 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