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

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

Fair

14°F

-10°C

Humidity 66%
Wind Speed NW 6 mph
Barometer 30.53 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 23 Feb 6:55 am CST
Extended Forecast for

McLean IL

  • Today

    Today: Mostly sunny, with a high near 30. Wind chill values between zero and 10. North northwest wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 17 mph.

    Low: 18 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 46. Breezy, with a south wind 13 to 18 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 37 mph.

    High: 46 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Southwest wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 25 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 42. West northwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 3am. Mostly cloudy, with a low around 26. West northwest wind 6 to 10 mph becoming east in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 26 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A 40 percent chance of snow before noon. Partly sunny, with a high near 40. East wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.

    High: 40 °F

    Chance Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 30. Wind chill values between zero and 10. North northwest wind 8 to 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 18. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 17 mph.
Tuesday
Mostly cloudy, with a high near 46. Breezy, with a south wind 13 to 18 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 37 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Southwest wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 25 mph.
Wednesday
Sunny, with a high near 42. West northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Rain and snow likely, becoming all snow after 3am. Mostly cloudy, with a low around 26. West northwest wind 6 to 10 mph becoming east in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 40 percent chance of snow before noon. Partly sunny, with a high near 40. East wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
Mostly clear, with a low around 24.
Friday
Sunny, with a high near 54.
Friday Night
Mostly clear, with a low around 33.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of snow. Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
McLean IL
 40.31°N 89.17°W (Elev. 699 ft)
Last Update:
6:36 am CST Feb 23, 2026
Forecast Valid:
7am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation