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

74°F

23°C

Humidity 43%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 25 May 8:55 pm CDT
Extended Forecast for

Chestnut IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Southeast wind 3 to 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 82. East wind 3 to 6 mph.

    High: 82 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. East southeast wind 3 to 5 mph.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. East northeast wind 3 to 7 mph.

    High: 82 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. Northeast wind 3 to 7 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 83. East northeast wind 9 to 13 mph, with gusts as high as 17 mph.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. East northeast wind 8 to 10 mph, with gusts as high as 17 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. Southeast wind 3 to 5 mph.
Tuesday
Increasing clouds, with a high near 82. East wind 3 to 6 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. East southeast wind 3 to 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. East northeast wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 61. Northeast wind 3 to 7 mph.
Thursday
Mostly sunny, with a high near 83. East northeast wind 9 to 13 mph, with gusts as high as 17 mph.
Thursday Night
Partly cloudy, with a low around 58. East northeast wind 8 to 10 mph, with gusts as high as 17 mph.
Friday
Partly sunny, with a high near 78.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chestnut IL
 40.05°N 89.22°W (Elev. 627 ft)
Last Update:
7:11 pm CDT May 25, 2026
Forecast Valid:
9pm CDT May 25, 2026-6pm CDT Jun 1, 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