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

Hazardous Weather Conditions

Current conditions at

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

A Few Clouds

5°F

-15°C

Humidity 66%
Wind Speed W 14 mph
Barometer 30.33 in (1028.5 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-12°F (-24°C)
Last update 19 Jan 5:52 pm CST
Extended Forecast for

Port Byron IL

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 3. Wind chill values as low as -5. West wind 5 to 10 mph.

    Low: 3 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 26. Wind chill values as low as -5. Calm wind becoming south around 5 mph in the morning.

    High: 26 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight. Mostly cloudy, with a steady temperature around 23. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Snow Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -7.

    Low: -7 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 0.

    High: 0 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -11.

    Low: -11 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 3. Wind chill values as low as -5. West wind 5 to 10 mph.
Tuesday
Increasing clouds, with a high near 26. Wind chill values as low as -5. Calm wind becoming south around 5 mph in the morning.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a steady temperature around 23. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
Mostly sunny, with a high near 31. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 22.
Thursday Night
Mostly cloudy, with a low around -7.
Friday
Partly sunny and cold, with a high near 0.
Friday Night
Mostly cloudy, with a low around -11.
Saturday
Partly sunny and cold, with a high near 4.
Saturday Night
Mostly cloudy, with a low around -6.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Mostly sunny, with a high near 22.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Byron IL
 41.62°N 90.33°W (Elev. 627 ft)
Last Update:
3:16 pm CST Jan 19, 2026
Forecast Valid:
6pm CST Jan 19, 2026-6pm CST Jan 26, 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