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

28°F

-2°C

Humidity 66%
Wind Speed NW 18 G 26 mph
Barometer NA
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 27 Nov 3:52 pm CST
Extended Forecast for

Port Byron IL

Winter Storm Warning November 29, 12:00am until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Warning

  • Thanksgiving Day

    Thanksgiving Day: Cloudy, with a steady temperature around 31. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 20. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Gradual
    Clearing

  • Friday

    Friday: Increasing clouds, with a high near 32. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 32 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Snow, mainly after 3am. The snow could be heavy at times. Low around 24. Light and variable wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Chance Snow
    then Heavy
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. High near 31. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 31 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow, mainly before midnight. Low around 21. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 21 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 18.

    High: 18 °F

    Partly Sunny

Detailed Forecast

Thanksgiving Day
Cloudy, with a steady temperature around 31. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 20. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Increasing clouds, with a high near 32. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Friday Night
Snow, mainly after 3am. The snow could be heavy at times. Low around 24. Light and variable wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow. The snow could be heavy at times. High near 31. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Saturday Night
Snow, mainly before midnight. Low around 21. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday
Partly sunny, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 4.
Monday
Partly sunny, with a high near 18.
Monday Night
Mostly cloudy, with a low around 5.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
Mostly cloudy, with a low around 11.
Wednesday
Mostly cloudy, with a high near 29.
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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:
3:16 pm CST Nov 27, 2025
Forecast Valid:
4pm CST Nov 27, 2025-6pm CST Dec 3, 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