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.

Fair

49°F

9°C

Humidity 68%
Wind Speed S 10 G 16 mph
Barometer 29.84 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 7 Jan 6:35 pm CST
Extended Forecast for

Lacon IL

  • Tonight

    Tonight: Increasing clouds, with a low around 40. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Showers, mainly after noon. High near 58. South wind 9 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 42. South southeast wind 8 to 15 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Rain then
    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 48. West wind 6 to 9 mph becoming north in the afternoon. Winds could gust as high as 17 mph.

    High: 48 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 32. Northeast wind 3 to 5 mph.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 37. West wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 37 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 19. West northwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 40. South wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday
Showers, mainly after noon. High near 58. South wind 9 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain and possibly a thunderstorm. Low around 42. South southeast wind 8 to 15 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly cloudy, with a high near 48. West wind 6 to 9 mph becoming north in the afternoon. Winds could gust as high as 17 mph.
Friday Night
A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 32. Northeast wind 3 to 5 mph.
Saturday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 37. West wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 19. West northwest wind around 14 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Mostly clear, with a low around 20.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 36.
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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:
6:36 pm CST Jan 7, 2026
Forecast Valid:
7pm CST Jan 7, 2026-6pm CST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation