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.

Thunderstorm Rain in Vicinity

53°F

12°C

Humidity 92%
Wind Speed S 8 mph
Barometer 29.99 in
Dewpoint 51°F (11°C)
Visibility 7.00 mi
Wind Chill50°F (10°C)
Last update 15 May 6:15 am CDT
Extended Forecast for

McLean IL

  • Today

    Today: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 75. South wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely then
    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 61. South southeast wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 11am, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Southwest wind 9 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 61. South wind 7 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 86. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 86 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Breezy, with a south wind 16 to 20 mph, with gusts as high as 29 mph.

    Low: 67 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 85. Breezy, with a south wind 17 to 23 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Breezy.
    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Breezy.

    Low: 67 °F

    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Breezy. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 75. South wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 61. South southeast wind 9 to 13 mph, with gusts as high as 23 mph.
Saturday
Showers and thunderstorms likely, mainly before 11am, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Southwest wind 9 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 61. South wind 7 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 86. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
Mostly clear, with a low around 67. Breezy, with a south wind 16 to 20 mph, with gusts as high as 29 mph.
Monday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 85. Breezy, with a south wind 17 to 23 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Breezy.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
McLean IL
 40.31°N 89.17°W (Elev. 699 ft)
Last Update:
6:20 am CDT May 15, 2026
Forecast Valid:
6am CDT May 15, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation