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

42°F

6°C

Humidity 68%
Wind Speed S 5 mph
Barometer 30.07 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 14 Nov 12:35 am CST
Extended Forecast for

Chestnut IL

  • Overnight

    Overnight: Partly cloudy, with a low around 42. South wind around 8 mph, with gusts as high as 15 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. South southwest wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. South southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73. Breezy, with a south southwest wind 14 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 73 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Northwest wind 8 to 11 mph, with gusts as high as 16 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. West northwest wind 5 to 7 mph becoming northeast after midnight.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 42. South wind around 8 mph, with gusts as high as 15 mph.
Friday
Mostly sunny, with a high near 71. South southwest wind 7 to 10 mph, with gusts as high as 17 mph.
Friday Night
Partly cloudy, with a low around 57. South southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Saturday
Partly sunny, with a high near 73. Breezy, with a south southwest wind 14 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
Mostly clear, with a low around 37. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 55. Northwest wind 8 to 11 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 32. West northwest wind 5 to 7 mph becoming northeast after midnight.
Monday
Mostly sunny, with a high near 54.
Monday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of rain before noon. Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A chance of rain. Mostly cloudy, with a high near 55.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Thursday
Rain likely. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chestnut IL
 40.05°N 89.19°W (Elev. 623 ft)
Last Update:
12:35 am CST Nov 14, 2025
Forecast Valid:
12am CST Nov 14, 2025-6pm CST Nov 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation