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

28°F

-2°C

Humidity 80%
Wind Speed Calm
Barometer 30.28 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 12 Feb 5:15 am CST
Extended Forecast for

Mc Lean IL

  • Today

    Today: Scattered sprinkles with isolated showers before 1pm, then scattered sprinkles between 1pm and 3pm. Mostly cloudy, with a high near 48. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 20%.

    High: 48 °F

    Isolated
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 30. South southeast wind 5 to 7 mph.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 55. South southwest wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 30 percent chance of rain after noon. Cloudy, with a high near 53. South southeast wind 5 to 7 mph.

    High: 53 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Cloudy, then gradually becoming partly cloudy, with a low around 37. Southeast wind around 7 mph becoming northeast after midnight.

    Low: 37 °F

    Chance Rain

  • Sunday

    Sunday: Sunny, with a high near 56. North wind around 8 mph.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
Scattered sprinkles with isolated showers before 1pm, then scattered sprinkles between 1pm and 3pm. Mostly cloudy, with a high near 48. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 30. South southeast wind 5 to 7 mph.
Friday
Sunny, with a high near 55. South southwest wind 7 to 10 mph, with gusts as high as 16 mph.
Friday Night
Increasing clouds, with a low around 32. South wind around 6 mph.
Saturday
A 30 percent chance of rain after noon. Cloudy, with a high near 53. South southeast wind 5 to 7 mph.
Saturday Night
A 40 percent chance of rain. Cloudy, then gradually becoming partly cloudy, with a low around 37. Southeast wind around 7 mph becoming northeast after midnight.
Sunday
Sunny, with a high near 56. North wind around 8 mph.
Sunday Night
Mostly clear, with a low around 32.
Washington's Birthday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly cloudy, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 62. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean IL
 40.31°N 89.17°W (Elev. 699 ft)
Last Update:
4:11 am CST Feb 12, 2026
Forecast Valid:
5am CST Feb 12, 2026-6pm CST Feb 18, 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