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Hazardous Weather Conditions

Current conditions at

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

Fair

25°F

-4°C

Humidity 66%
Wind Speed NW 7 mph
Barometer 30.37 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 27 Nov 11:15 pm CST
Extended Forecast for

Mc Lean IL

Winter Storm Watch November 29, 12:00am until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Mostly clear, with a low around 19. West northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 33. Northwest wind 5 to 8 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.

    High: 33 °F

    Sunny

  • Friday Night

    Friday Night: Snow, mainly after 3am. Low around 23. Light and variable wind becoming southeast 6 to 11 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 23 °F

    Mostly Cloudy
    then Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. High near 32. South southeast wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 32 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow, mainly before midnight. Low around 24. South southeast wind 13 to 17 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 24 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 26. West northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 26 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 6. Northwest wind 5 to 9 mph becoming light north after midnight. Winds could gust as high as 15 mph.

    Low: 6 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 21.

    High: 21 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 10.

    Low: 10 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 19. West northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 33. Northwest wind 5 to 8 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Snow, mainly after 3am. Low around 23. Light and variable wind becoming southeast 6 to 11 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday
Snow. The snow could be heavy at times. High near 32. South southeast wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Saturday Night
Snow, mainly before midnight. Low around 24. South southeast wind 13 to 17 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Sunday
Mostly cloudy, with a high near 26. West northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 6. Northwest wind 5 to 9 mph becoming light north after midnight. Winds could gust as high as 15 mph.
Monday
Mostly cloudy, with a high near 21.
Monday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 10.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
Mostly cloudy, with a low around 10.
Wednesday
Mostly cloudy, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
Partly sunny, with a high near 27.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean IL
 40.31°N 89.17°W (Elev. 699 ft)
Last Update:
9:36 pm CST Nov 27, 2025
Forecast Valid:
11pm CST Nov 27, 2025-6pm CST Dec 4, 2025
 
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