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.

Overcast and Windy

40°F

4°C

Humidity 79%
Wind Speed W 26 G 41 mph
Barometer NA
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 10 Dec 12:52 am CST
Extended Forecast for

Port Byron IL

Wind Advisory until December 10, 09:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 10, 09:00am

    NOW until 9:00am Wed

    Wind Advisory

  • Overnight

    Low: 29 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Snow likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 26 by 5pm. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 32 °F⇓

    Breezy. Snow
    Likely then
    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 14. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 14 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 25. Northwest wind around 5 mph becoming southeast in the afternoon.

    High: 25 °F

    Partly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Cloudy, with a low around 19. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Snow Likely

  • Friday

    Friday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow. Mostly cloudy, with a high near 11.

    High: 11 °F

    Chance Snow

Detailed Forecast

Overnight
A slight chance of rain before 3am, then a chance of rain after 5am. Cloudy, with a low around 29. Breezy, with a west wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 50%.
Wednesday
Snow likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 26 by 5pm. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, with a low around 14. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 25. Northwest wind around 5 mph becoming southeast in the afternoon.
Thursday Night
Snow likely, mainly before midnight. Cloudy, with a low around 19. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 27.
Friday Night
Mostly cloudy, with a low around 6.
Saturday
A 50 percent chance of snow. Mostly cloudy, with a high near 11.
Saturday Night
Partly cloudy, with a low around -10.
Sunday
Sunny and cold, with a high near 6.
Sunday Night
Partly cloudy, with a low around -6.
Monday
Partly sunny, with a high near 23.
Monday Night
Mostly cloudy, with a low around 9.
Tuesday
Partly sunny, with a high near 28.
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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:
9:01 pm CST Dec 9, 2025
Forecast Valid:
1am CST Dec 10, 2025-6pm CST Dec 16, 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