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.

Overcast

58°F

14°C

Humidity 75%
Wind Speed SW 8 mph
Barometer 29.75 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 4 Nov 1:15 pm CST
Extended Forecast for

Delavan IL

  • This Afternoon

    This Afternoon: A slight chance of drizzle. Cloudy, with a high near 58. West southwest wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 58 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: Patchy drizzle before 10pm. Cloudy, with a low around 47. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Patchy
    Drizzle then
    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after 2pm. Mostly cloudy, with a high near 58. West southwest wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 58 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. West northwest wind 7 to 10 mph becoming north after midnight. Winds could gust as high as 17 mph.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 51. North wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 51 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30. North wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 53. Calm wind becoming north northwest around 5 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of drizzle. Cloudy, with a high near 58. West southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Tonight
Patchy drizzle before 10pm. Cloudy, with a low around 47. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of rain after 2pm. Mostly cloudy, with a high near 58. West southwest wind 9 to 15 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 41. West northwest wind 7 to 10 mph becoming north after midnight. Winds could gust as high as 17 mph.
Friday
Mostly sunny, with a high near 51. North wind 7 to 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 30. North wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 53. Calm wind becoming north northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 64.
Monday Night
Clear, with a low around 39.
Tuesday
Sunny, with a high near 65.
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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:
1:21 pm CST Nov 4, 2026
Forecast Valid:
1pm CST Nov 4, 2026-6pm CST Nov 10, 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