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.

Overcast

57°F

14°C

Humidity 62%
Wind Speed NW 8 mph
Barometer 30.05 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 10 Apr 12:15 am CDT
Extended Forecast for

Eureka IL

  • Overnight

    Overnight: Showers and thunderstorms likely before 3am, then showers and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Low around 51. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers

  • Friday

    Friday: A 50 percent chance of showers before 9am. Mostly cloudy, with a high near 61. West wind around 11 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 61 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. North wind around 6 mph becoming east after midnight.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 63. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 63 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56. Southeast wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 75. Breezy, with a south southwest wind 15 to 24 mph, with gusts as high as 34 mph.

    High: 75 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 61. Breezy, with a south southwest wind 17 to 20 mph, with gusts as high as 30 mph.

    Low: 61 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A 30 percent chance of showers. Mostly cloudy, with a high near 80.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers and thunderstorms likely before 3am, then showers and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Low around 51. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 50 percent chance of showers before 9am. Mostly cloudy, with a high near 61. West wind around 11 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 39. North wind around 6 mph becoming east after midnight.
Saturday
Increasing clouds, with a high near 63. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 56. Southeast wind 10 to 14 mph, with gusts as high as 24 mph.
Sunday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 75. Breezy, with a south southwest wind 15 to 24 mph, with gusts as high as 34 mph.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 61. Breezy, with a south southwest wind 17 to 20 mph, with gusts as high as 30 mph.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 80.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 65.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Breezy. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Mostly cloudy, with a high near 76. Breezy.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka IL
 40.71°N 89.27°W (Elev. 774 ft)
Last Update:
11:46 pm CDT Apr 9, 2026
Forecast Valid:
12am CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
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