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

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

62°F

17°C

Humidity 73%
Wind Speed SW 9 mph
Barometer 29.70 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 15 Nov 2:15 am CST
Extended Forecast for

Neponset IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 58. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 69. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 69 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 51. Northwest wind 5 to 10 mph.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

  • Tuesday

    Tuesday: A 30 percent chance of rain before noon. Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 58. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 69. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Mostly clear, with a low around 35. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 51. Northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 29.
Monday
Mostly sunny, with a high near 50.
Monday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Thursday
Rain likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 55.
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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:
2:16 am CST Nov 15, 2025
Forecast Valid:
2am CST Nov 15, 2025-6pm CST Nov 21, 2025
 
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