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

Hazardous Weather Conditions

Current conditions at

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

Fog/Mist

47°F

8°C

Humidity 93%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 45°F (7°C)
Visibility 3.00 mi
Last update 4 Mar 8:15 pm CST
Extended Forecast for

4 Miles W Mc Lean IL

Dense Fog Advisory until March 5, 06:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until March 5, 06:00am

    NOW until 6:00am Thu

    Dense Fog Advisory

  • Tonight

    Low: 46 °F

    Chance
    T-storms and
    Areas Fog
    then Showers
    and Areas Fog

  • Thursday

    Thursday: Showers likely, mainly before 9am. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 60. East southeast wind 5 to 7 mph becoming west in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Showers
    Likely and
    Areas Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 48. Light and variable wind becoming south southeast 5 to 9 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 50%.

    Low: 48 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 75. Breezy, with a south wind 11 to 20 mph, with gusts as high as 29 mph.

    High: 75 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 52. South wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers before noon. Mostly cloudy, with a high near 62. Southwest wind 11 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 62 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 16 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Areas of fog. Low around 46. East wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 9am. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 60. East southeast wind 5 to 7 mph becoming west in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 48. Light and variable wind becoming south southeast 5 to 9 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 50%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 75. Breezy, with a south wind 11 to 20 mph, with gusts as high as 29 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 52. South wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 40 percent chance of showers before noon. Mostly cloudy, with a high near 62. Southwest wind 11 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 36. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 16 mph.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 73.
Monday Night
A chance of rain and thunderstorms. Partly cloudy, with a low around 56.
Tuesday
Rain. Mostly cloudy, with a high near 72. Breezy.
Tuesday Night
Rain. Mostly cloudy, with a low around 40. Breezy.
Wednesday
A chance of rain. Mostly cloudy, with a high near 51. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Mc Lean IL
 40.31°N 89.23°W (Elev. 673 ft)
Last Update:
6:36 pm CST Mar 4, 2026
Forecast Valid:
8pm CST Mar 4, 2026-6pm CDT Mar 11, 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