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.

Fair

75°F

24°C

Humidity 67%
Wind Speed NW 5 mph
Barometer 30.01 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 3 Aug 11:15 am CDT
Extended Forecast for

Roanoke IL

  • Today

    Today: Sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind becoming southeast around 5 mph in the evening.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. South southwest wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. South southeast wind around 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 84. South wind 3 to 5 mph. Chance of precipitation is 40%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm, then showers after 1am. Low around 64. Light south wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Calm wind becoming west around 5 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: 81 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Light and variable wind.
Tonight
Mostly clear, with a low around 63. Calm wind becoming southeast around 5 mph in the evening.
Tuesday
Mostly sunny, with a high near 85. South southwest wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 66. South southeast wind around 6 mph.
Wednesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 84. South wind 3 to 5 mph. Chance of precipitation is 40%.
Wednesday Night
Showers likely and possibly a thunderstorm, then showers after 1am. Low around 64. Light south wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Calm wind becoming west around 5 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.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Roanoke IL
 40.8°N 89.2°W (Elev. 738 ft)
Last Update:
11:16 am CDT Aug 3, 2026
Forecast Valid:
11am CDT Aug 3, 2026-6pm CDT Aug 9, 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