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.

Thunderstorm in Vicinity

43°F

6°C

Humidity 100%
Wind Speed NE 13 mph
Barometer 29.97 in
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill36°F (2°C)
Last update 4 Apr 12:30 am CDT
Extended Forecast for

Romeoville IL

Flood Watch April 4, 12:53am until April 4, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 4, 12:53am until April 4, 10:00am

    NOW until 10:00am Sat

    Flood Watch

  • Overnight

    Low: 43 °F⇑

    Showers

  • Saturday

    Saturday: Showers likely, mainly before 10am. Cloudy, with a high near 57. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Breezy.
    Showers
    Likely then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 36 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 52. West northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 52 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. West wind around 10 mph, with gusts as high as 15 mph.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Temperature rising to around 52 by 5am. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers likely, mainly before 10am. Cloudy, with a high near 57. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Mostly cloudy, with a low around 36. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 52. West northwest wind around 15 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 37. West wind around 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 66. Breezy.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 51.
Thursday
A chance of showers. Mostly cloudy, with a high near 68.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 47.
Friday
A chance of showers. Mostly cloudy, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
12:01 am CDT Apr 4, 2026
Forecast Valid:
12am CDT Apr 4, 2026-6pm CDT Apr 10, 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