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

63°F

17°C

Humidity 85%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 Jun 4:15 am CDT
Extended Forecast for

Lacon IL

  • Today

    Today: A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 67. South wind 3 to 5 mph.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. Southwest wind 5 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 69. South southwest wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 7am. High near 84. South southwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 84 °F

    Showers then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 64. West wind 5 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    T-storms
    Likely then
    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 85. West wind 5 to 8 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 67. South wind 3 to 5 mph.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. Southwest wind 5 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 69. South southwest wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers, with thunderstorms also possible after 7am. High near 84. South southwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 64. West wind 5 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 85. West wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lacon IL
 41.02°N 89.42°W (Elev. 440 ft)
Last Update:
4:25 am CDT Jun 16, 2025
Forecast Valid:
4am CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation