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

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

32°F

0°C

Humidity 87%
Wind Speed S 6 mph
Barometer 30.07 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 14 Feb 1:55 am CST
Extended Forecast for

Chicago/Romeoville, Lewis University Airport IL

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 54. Calm wind becoming south around 5 mph in the afternoon.

    High: 54 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34. South southeast wind around 5 mph becoming calm.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58. West wind around 5 mph, with gusts as high as 10 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. West northwest wind around 5 mph becoming south in the evening. Winds could gust as high as 10 mph.

    Low: 36 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain after midnight. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 29. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 54. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 34. South southeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 58. West wind around 5 mph, with gusts as high as 10 mph.
Sunday Night
Partly cloudy, with a low around 36. West northwest wind around 5 mph becoming south in the evening. Winds could gust as high as 10 mph.
Washington's Birthday
Partly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Mostly cloudy, with a high near 58.
Tuesday Night
A chance of rain after midnight. Mostly cloudy, with a low around 50.
Wednesday
Sunny, with a high near 62. Breezy.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A chance of rain. Partly sunny, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 33.
Friday
Mostly cloudy, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chicago/Romeoville, Lewis University Airport IL
 41.61°N 88.1°W
Last Update:
1:46 am CST Feb 14, 2026
Forecast Valid:
2am CST Feb 14, 2026-6pm CST Feb 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation