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.

Fair

34°F

1°C

Humidity 93%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 2 May 6:45 am CDT
Extended Forecast for

4 Miles SE Lemont IL

Frost Advisory May 2, 07:31am until May 2, 08:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory May 2, 07:31am until May 2, 08:00am

    NOW until 8:00am Sat

    Frost Advisory

  • Today

    High: 55 °F

    Areas Frost
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 40. West northwest wind 5 to 10 mph becoming south southwest in the evening.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 67. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 67 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 4pm. Sunny, with a high near 75. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 75 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

Detailed Forecast

Today
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 55. Light west northwest wind becoming northwest 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 40. West northwest wind 5 to 10 mph becoming south southwest in the evening.
Sunday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 67. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday Night
Mostly clear, with a low around 45. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers after 4pm. Sunny, with a high near 75. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Tuesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 42.
Wednesday
A chance of showers after 1pm. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 41.
Thursday
A chance of showers. Mostly cloudy, with a high near 57.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Lemont IL
 41.63°N 87.93°W
Last Update:
3:30 am CDT May 2, 2026
Forecast Valid:
7am CDT May 2, 2026-6pm CDT May 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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