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.

Light Rain

75°F

24°C

Humidity 91%
Wind Speed SW 3 mph
Barometer 30.07 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 15 Aug 11:15 am CDT
Extended Forecast for

Neponset IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms before noon. Mostly cloudy, with a high near 83. West wind 5 to 10 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 84. Northwest wind 5 to 10 mph.

    High: 84 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. Northwest wind 5 to 10 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before noon. Mostly cloudy, with a high near 83. West wind 5 to 10 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 72. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 84. Northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 65. Northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Neponset IL
 41.3°N 89.79°W (Elev. 817 ft)
Last Update:
5:51 am CDT Aug 15, 2026
Forecast Valid:
11am CDT Aug 15, 2026-6pm CDT Aug 21, 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