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 80%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 4 Aug 9:55 pm CDT
Extended Forecast for

Neponset IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 67. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Partly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before noon, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Southwest wind around 5 mph becoming northwest in the morning. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 10pm, then showers likely. Low around 64. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 77. East wind around 5 mph.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 67. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and thunderstorms likely, mainly before noon, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Southwest wind around 5 mph becoming northwest in the morning. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and thunderstorms before 10pm, then showers likely. Low around 64. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 77. East wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 66.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers after 1am. Mostly clear, with a low around 67.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 83.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 85.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 80.
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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:
5:01 pm CDT Aug 4, 2026
Forecast Valid:
10pm CDT Aug 4, 2026-6pm CDT Aug 11, 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