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

Heavy Rainfall and Flooding in the Southwest and Along the East Coast

A multi-day heavy rainfall event is set to begin across New Mexico into west Texas Tuesday through Wednesday. Flash flooding and debris flows in the vicinity of burn scars will also be possible. A strong coastal low will develop offshore of the Mid-Atlantic coast midweek, bringing heavy rainfall, strong winds and coastal flooding to much of the East Coast through Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Overcast

59°F

15°C

Humidity 82%
Wind Speed NE 12 mph
Barometer 30.21 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 22 Sep 2:15 am CDT
Extended Forecast for

Frankfort IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. East northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Mostly cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 55. Northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 68.

    High: 68 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. East northeast wind around 10 mph, with gusts as high as 15 mph.
Tuesday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 55. Northeast wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly cloudy, with a high near 66. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 53. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Mostly cloudy, with a high near 68.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Frankfort IL
 41.49°N 87.85°W
Last Update:
1:21 am CDT Sep 22, 2026
Forecast Valid:
2am CDT Sep 22, 2026-6pm CDT Sep 28, 2026
 
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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