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.

Fair

25°F

-4°C

Humidity 81%
Wind Speed W 10 mph
Barometer 29.64 in (1004.1 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 25 Feb 3:52 am CST
Extended Forecast for

Port Byron IL

  • Today

    Today: Sunny, with a high near 36. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 36 °F

    Sunny

  • Tonight

    Tonight: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 21. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Snow Likely
    then Slight
    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 47. North wind 5 to 10 mph becoming south in the morning.

    High: 47 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Southwest wind 5 to 10 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 40.

    High: 40 °F

    Partly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 33.

    High: 33 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

Today
Sunny, with a high near 36. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 21. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Mostly sunny, with a high near 47. North wind 5 to 10 mph becoming south in the morning.
Thursday Night
Mostly clear, with a low around 29. Southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 28.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 40.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 33.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20.
Monday
Mostly cloudy, with a high near 35.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
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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:
2:46 am CST Feb 25, 2026
Forecast Valid:
4am CST Feb 25, 2026-6pm CST Mar 3, 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