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

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

Fair

54°F

12°C

Humidity 57%
Wind Speed W 15 mph
Barometer 29.78 in (1008.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 15 Nov 6:52 pm CST
Extended Forecast for

Port Byron IL

  • Tonight

    Tonight: Clear, with a low around 34. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 34 °F

    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 31. West wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 52. Light and variable wind becoming southeast 5 to 10 mph in the morning.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: Rain likely. Cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Tuesday Night

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

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Clear, with a low around 34. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 51. Northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 31. West wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 52. Light and variable wind becoming southeast 5 to 10 mph in the morning.
Monday Night
Rain likely. Cloudy, with a low around 39. Chance of precipitation is 70%.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 40.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
Thursday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 54.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Byron IL
 41.62°N 90.33°W (Elev. 627 ft)
Last Update:
3:31 pm CST Nov 15, 2025
Forecast Valid:
7pm CST Nov 15, 2025-6pm CST Nov 22, 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