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

51°F

11°C

Humidity 60%
Wind Speed S 9 mph
Barometer 29.87 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 7 Jan 2:55 pm CST
Extended Forecast for

Lacon IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 51. South wind around 8 mph, with gusts as high as 18 mph.

    High: 51 °F

    Sunny

  • 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, mainly before midnight. 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 possible.

    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.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 51. South wind around 8 mph, with gusts as high as 18 mph.
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, mainly before midnight. 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 possible.
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.
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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lacon IL
 41.02°N 89.39°W (Elev. 515 ft)
Last Update:
2:36 pm CST Jan 7, 2026
Forecast Valid:
3pm CST Jan 7, 2026-6pm CST Jan 13, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation