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

72°F

22°C

Humidity 33%
Wind Speed W 8 G 17 mph
Barometer 30.10 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 8 Oct 12:45 pm CDT
Extended Forecast for

Frankfort IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 72. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers. Partly sunny, with a high near 76. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 81. South wind around 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 72.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 72. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 51. Calm wind.
Friday
A chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers. Partly sunny, with a high near 76. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 60. South wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 81. South wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 60.
Sunday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 56.
Columbus Day
Mostly sunny, with a high near 80.
Monday Night
A chance of showers. Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Frankfort IL
 41.51°N 87.85°W
Last Update:
11:16 am CDT Oct 8, 2026
Forecast Valid:
1pm CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
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