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

5°F

-15°C

Humidity 76%
Wind Speed SW 9 mph
Barometer 30.07 in (1019.6 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill-9°F (-23°C)
Last update 18 Jan 6:52 am CST
Extended Forecast for

Port Byron IL

Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory

  • Today

    Today: Snow, mainly after 5pm. High near 20. Wind chill values as low as -10. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 20 °F

    Cloudy then
    Snow

  • Tonight

    Tonight: Snow, mainly before 9pm. Low around 1. Wind chill values as low as -20. Blustery, with a northwest wind 10 to 15 mph increasing to 20 to 25 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 1 °F

    Blustery.
    Snow then
    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 10. Wind chill values as low as -20. Blustery, with a west wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 10 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 3. Wind chill values as low as -5. Southwest wind 5 to 10 mph.

    Low: 3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

Detailed Forecast

Today
Snow, mainly after 5pm. High near 20. Wind chill values as low as -10. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 9pm. Low around 1. Wind chill values as low as -20. Blustery, with a northwest wind 10 to 15 mph increasing to 20 to 25 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
M.L.King Day
Mostly sunny and cold, with a high near 10. Wind chill values as low as -20. Blustery, with a west wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 3. Wind chill values as low as -5. Southwest wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 29.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
Mostly sunny, with a high near 24.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
Mostly cloudy, with a high near 28.
Friday Night
Mostly cloudy, with a low around 6.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 13.
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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:
6:56 am CST Jan 18, 2026
Forecast Valid:
7am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation