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

65°F

18°C

Humidity 61%
Wind Speed SE 13 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 10 Oct 9:56 pm CDT
Extended Forecast for

3 Miles E Port Byron IL

  • Tonight

    Tonight: Mostly clear, with a low around 54. South wind 5 to 10 mph.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. South wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 66. South wind 5 to 10 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 87. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 1am. Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 54. South wind 5 to 10 mph.
Sunday
Sunny, with a high near 82. South wind 5 to 10 mph.
Sunday Night
Increasing clouds, with a low around 66. South wind 5 to 10 mph.
Columbus Day
Mostly sunny, with a high near 87. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 80.
Tuesday Night
A 40 percent chance of showers after 1am. Mostly clear, with a low around 58.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 71.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 69.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 63. Breezy.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Port Byron IL
 41.62°N 90.27°W (Elev. 699 ft)
Last Update:
9:41 pm CDT Oct 10, 2026
Forecast Valid:
10pm CDT Oct 10, 2026-6pm CDT Oct 17, 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