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.

Fair

71°F

22°C

Humidity 87%
Wind Speed Calm
Barometer 29.92 in (1013.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 2 Aug 8:56 pm CDT
Extended Forecast for

2 Miles ENE Port Byron IL

  • Tonight

    Tonight: Mostly clear, with a low around 59. North wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. Calm wind becoming east around 5 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 62. Southeast wind around 5 mph.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. South wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Chance
    Showers

  • Thursday Night

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

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 59. North wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 82. Calm wind becoming east around 5 mph.
Monday Night
Clear, with a low around 62. Southeast wind around 5 mph.
Tuesday
Sunny, with a high near 84. South wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 66.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Port Byron IL
 41.64°N 90.3°W (Elev. 709 ft)
Last Update:
5:21 pm CDT Aug 2, 2026
Forecast Valid:
9pm CDT Aug 2, 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