Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

64°F

18°C

Humidity 76%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 21 Jun 10:35 am CDT
Extended Forecast for

Lacon IL

Flood Watch until June 22, 01:00am
Flood Warning June 21, 10:48am until June 21, 01:00pm
Click here for hazard details and duration
Flood Watch
Flood Warning
  •  
    Flood Watch until June 22, 01:00am
    Flood Warning June 21, 10:48am until June 21, 01:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 68 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and thunderstorms likely before 10pm, then a chance of showers. Some of the storms could produce heavy rainfall.  Cloudy, with a low around 55. East northeast wind 10 to 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Heavy Rain
    then Chance
    Showers

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 75. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 79. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 15 mph.  Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 68. East wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Showers and thunderstorms likely before 10pm, then a chance of showers. Some of the storms could produce heavy rainfall. Cloudy, with a low around 55. East northeast wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 75. North northeast wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 52. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 77. Calm wind.
Tuesday Night
Mostly clear, with a low around 57. Calm wind.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 79. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 57.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lacon IL
 41.02°N 89.39°W (Elev. 515 ft)
9:16 am CDT Jun 21, 2026
10am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database