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

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles ESE Port Byron IL

  • Tonight

    Tonight: A 50 percent chance of showers before midnight. Mostly cloudy, with a low around 56. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. North wind around 10 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Northeast wind around 5 mph becoming southeast after midnight.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. East wind around 5 mph becoming south in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers before midnight. Mostly cloudy, with a low around 56. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 76. North wind around 10 mph.
Monday Night
Mostly clear, with a low around 54. Northeast wind around 5 mph becoming southeast after midnight.
Tuesday
Mostly sunny, with a high near 78. East wind around 5 mph becoming south in the afternoon.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 58.
Friday
Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Saturday
Partly sunny, with a high near 81.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 86. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Port Byron IL
 41.62°N 90.27°W (Elev. 699 ft)
Last Update:
5:31 pm CDT Jun 21, 2026
Forecast Valid:
9pm CDT Jun 21, 2026-6pm CDT Jun 28, 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