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.

Heavy Rain Fog

70°F

21°C

Humidity 100%
Wind Speed S 10 G 20 mph
Barometer 29.66 in
Dewpoint 70°F (21°C)
Visibility 0.50 mi
Last update 18 Jun 5:45 pm CDT
Extended Forecast for

Romeoville IL

Flood Watch until June 18, 08:00pm
Flood Advisory June 18, 06:22pm until June 18, 08:15pm
Click here for hazard details and duration
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  •  
    Flood Watch until June 18, 08:00pm
    Flood Advisory June 18, 06:22pm until June 18, 08:15pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 63 °F

    Showers then
    Chance
    Showers

  • Juneteenth

    Juneteenth: A 20 percent chance of showers before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 83 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Southwest wind 5 to 10 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 85. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Breezy.

    High: 94 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Tonight
Showers and thunderstorms before 4am, then a chance of showers. Low around 63. West northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Juneteenth
A 20 percent chance of showers before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
Mostly clear, with a low around 63. Southwest wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 85. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 94. Breezy.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny and hot, with a high near 95.
Sunday Night
Clear, with a low around 75.
Monday
Sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A chance of showers. Mostly sunny, with a high near 93.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Romeoville IL
 41.66°N 88.1°W
Last Update:
4:11 pm CDT Jun 18, 2025
Forecast Valid:
6pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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