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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

61°F

16°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.15 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Aug 6:50 am CDT
Extended Forecast for

Mokena IL

  • Today

    Today: Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 80. South southwest wind 5 to 10 mph.

    High: 80 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 66. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 61. South wind around 5 mph.
Saturday
Increasing clouds, with a high near 80. South southwest wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 66. South wind around 10 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mokena IL
 41.54°N 87.88°W
Last Update:
1:21 am CDT Aug 28, 2026
Forecast Valid:
7am CDT Aug 28, 2026-6pm CDT Sep 3, 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