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.

Mostly Cloudy

80°F

27°C

Humidity 55%
Wind Speed S 14 G 21 mph
Barometer 29.76 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Mar 1:55 pm CDT
Extended Forecast for

Delavan IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 80. South wind 14 to 16 mph, with gusts as high as 25 mph.

    High: 80 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly after midnight. Low around 44. South wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Rain and thunderstorms before 1pm, then a chance of rain between 1pm and 2pm. Temperature falling to around 44 by 4pm. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F⇓

    T-storms then
    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 28. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 50. West southwest wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 50 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Breezy, with a south wind 13 to 22 mph, with gusts as high as 34 mph.

    Low: 41 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 53. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 33 mph.

    High: 53 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 80. South wind 14 to 16 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms, mainly after midnight. Low around 44. South wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain and thunderstorms before 1pm, then a chance of rain between 1pm and 2pm. Temperature falling to around 44 by 4pm. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 28. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Thursday
Increasing clouds, with a high near 50. West southwest wind 5 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 41. Breezy, with a south wind 13 to 22 mph, with gusts as high as 34 mph.
Friday
Mostly sunny, with a high near 53. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Mostly cloudy, with a high near 56.
Saturday Night
A 40 percent chance of rain after 1am. Mostly cloudy, with a low around 42.
Sunday
Rain. Cloudy, with a high near 56. Breezy.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 15. Blustery.
Monday
Mostly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Delavan IL
 40.39°N 89.52°W (Elev. 659 ft)
Last Update:
1:26 pm CDT Mar 10, 2026
Forecast Valid:
2pm CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation