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

26°C

79°F

Humidity 84%
Wind Speed S 19 km/h
Barometer 30.05 in
Dewpoint 23°C (73°F)
Visibility 16 km
Heat Index28°C (83°F)
Last update 23 Jun 2:15 am CDT
Extended Forecast for

Lockport IL

Heat Advisory June 23, 02:36am until June 24, 12:00am
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 23, 02:36am until June 24, 12:00am

    NOW until 12:00am Tue

    Heat Advisory

  • Overnight

    Low: 26 °C

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 36. Heat index values as high as 40. Southwest wind 20 to 25 km/h increasing to 25 to 30 km/h in the afternoon. Winds could gust as high as 50 km/h.

    High: 36 °C

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Southwest wind 20 to 30 km/h decreasing to 10 to 20 km/h in the evening. Winds could gust as high as 40 km/h.

    Low: 24 °C

    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 33. Heat index values as high as 39. West southwest wind 10 to 15 km/h, with gusts as high as 25 km/h. Chance of precipitation is 60%.

    High: 33 °C

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21. North wind 5 to 10 km/h becoming east after midnight. Winds could gust as high as 20 km/h.

    Low: 21 °C

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 33.

    High: 33 °C

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 22.

    Low: 22 °C

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 34.

    High: 34 °C

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 26. South southwest wind 15 to 20 km/h.
Monday
Sunny and hot, with a high near 36. Heat index values as high as 40. Southwest wind 20 to 25 km/h increasing to 25 to 30 km/h in the afternoon. Winds could gust as high as 50 km/h.
Monday Night
Partly cloudy, with a low around 24. Southwest wind 20 to 30 km/h decreasing to 10 to 20 km/h in the evening. Winds could gust as high as 40 km/h.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 33. Heat index values as high as 39. West southwest wind 10 to 15 km/h, with gusts as high as 25 km/h. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21. North wind 5 to 10 km/h becoming east after midnight. Winds could gust as high as 20 km/h.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 33.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 22.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 34.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 22.
Friday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 32.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 20.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 32.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 21.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lockport IL
 41.59°N 88.05°W
Last Update:
1:56 am CDT Jun 23, 2025
Forecast Valid:
2am CDT Jun 23, 2025-6pm CDT Jun 29, 2025
 
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