National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

16°F

-9°C

Humidity 61%
Wind Speed NW 17 G 24 mph
Barometer 30.47 in
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 22 Feb 9:55 pm CST
Extended Forecast for

Lacon IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 11. Wind chill values between -1 and 4. North northwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 11 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 29. Wind chill values between -4 and 6. North northwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 16. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 15 mph.

    Low: 16 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 44. South wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 44 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. West northwest wind 3 to 8 mph. Winds could gust as high as 15 mph.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 24. Light and variable wind becoming east 5 to 7 mph in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 24 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Thursday

    Thursday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 11. Wind chill values between -1 and 4. North northwest wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 29. Wind chill values between -4 and 6. North northwest wind 6 to 15 mph, with gusts as high as 23 mph.
Monday Night
Increasing clouds, with a low around 16. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly cloudy, with a high near 44. South wind 9 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 42. West northwest wind 3 to 8 mph. Winds could gust as high as 15 mph.
Wednesday Night
Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 24. Light and variable wind becoming east 5 to 7 mph in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Partly sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Partly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lacon IL
 41.02°N 89.39°W (Elev. 515 ft)
Last Update:
9:36 pm CST Feb 22, 2026
Forecast Valid:
10pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation