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

61°F

16°C

Humidity 63%
Wind Speed W 8 mph
Barometer 29.97 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 5 Nov 8:55 am CST
Extended Forecast for

Delavan IL

  • Today

    Today: Sunny, with a high near 64. North northwest wind 10 to 17 mph, with gusts as high as 29 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. North northwest wind 5 to 7 mph becoming light and variable in the evening.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 61. Light east wind becoming south southeast 9 to 14 mph in the morning. Winds could gust as high as 23 mph.

    High: 61 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain likely after midnight. Mostly cloudy, with a low around 51. South southeast wind 11 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Mostly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 68. West wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 68 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. West northwest wind 5 to 9 mph becoming light north northwest after midnight. Winds could gust as high as 17 mph.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of rain after noon. Partly sunny, with a high near 58. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 58 °F

    Mostly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 64. North northwest wind 10 to 17 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 33. North northwest wind 5 to 7 mph becoming light and variable in the evening.
Thursday
Increasing clouds, with a high near 61. Light east wind becoming south southeast 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Thursday Night
Rain likely after midnight. Mostly cloudy, with a low around 51. South southeast wind 11 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 68. West wind 10 to 14 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 37. West northwest wind 5 to 9 mph becoming light north northwest after midnight. Winds could gust as high as 17 mph.
Saturday
A 40 percent chance of rain after noon. Partly sunny, with a high near 58. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Saturday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Sunny, with a high near 40.
Monday Night
Mostly clear, with a low around 22.
Veterans Day
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Delavan IL
 40.37°N 89.55°W (Elev. 600 ft)
Last Update:
8:36 am CST Nov 5, 2025
Forecast Valid:
9am CST Nov 5, 2025-6pm CST Nov 11, 2025
 
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