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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

69°F

21°C

Humidity 85%
Wind Speed SW 6 mph
Barometer 29.36 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 Jun 6:15 pm CDT
Extended Forecast for

2 Miles E Roanoke IL

Flood Watch until June 17, 10:00pm
Click here for hazard details and duration
...
  •  
    Flood Watch until June 17, 10:00pm

    NOW until 10:00pm Wed

    Flood Watch

  • Tonight

    Low: 58 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. West northwest wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. West northwest wind 3 to 8 mph.

    Low: 55 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 78. Light west wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 16 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. West northwest wind around 6 mph becoming calm.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. West southwest wind 3 to 7 mph.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 61. Light and variable wind becoming east around 6 mph after midnight.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. Chance of precipitation is 90%.

    High: 77 °F

    Showers
    Likely then
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming clear, with a low around 58. West wind 13 to 17 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 73. West northwest wind 11 to 14 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 55. West northwest wind 3 to 8 mph.
Juneteenth
Sunny, with a high near 78. Light west wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 16 mph.
Friday Night
Partly cloudy, with a low around 59. West northwest wind around 6 mph becoming calm.
Saturday
Mostly sunny, with a high near 81. West southwest wind 3 to 7 mph.
Saturday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 61. Light and variable wind becoming east around 6 mph after midnight.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. Chance of precipitation is 90%.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Roanoke IL
 40.79°N 89.15°W (Elev. 725 ft)
Last Update:
5:31 pm CDT Jun 17, 2026
Forecast Valid:
6pm CDT Jun 17, 2026-6pm CDT Jun 24, 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