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

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Partly Cloudy

87°F

31°C

Humidity 57%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 15 Jul 3:15 pm CDT
Extended Forecast for

Lacon IL

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. South wind around 5 mph. Chance of precipitation is 20%.

    High: 89 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 20%.

    Low: 71 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 89. Light south southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Mostly Sunny
    then T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    T-storms
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. Northwest wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 76 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. North wind around 6 mph becoming calm after midnight.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    T-storms
    Likely

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. South wind around 5 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 20%.
Wednesday
Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 89. Light south southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. Northwest wind 6 to 9 mph, with gusts as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 60. North wind around 6 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 80. Light and variable wind.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Saturday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Lacon IL
 41.02°N 89.39°W (Elev. 515 ft)
Last Update:
2:40 pm CDT Jul 15, 2025
Forecast Valid:
3pm CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
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