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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Davenport Municipal Airport (KDVN)

Lat: 41.61°NLon: 90.59°WElev: 741ft.

Fog/Mist

31°F

-1°C

Humidity 96%
Wind Speed Calm
Barometer 30.09 in (1019.4 mb)
Dewpoint 30°F (-1°C)
Visibility 3.00 mi
Last update 10 Jan 1:52 am CST
Extended Forecast for

Port Byron IL

  • Overnight

    Overnight: A chance of rain before 3am, then rain, possibly mixed with snow. Low around 31. West wind around 5 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 10am, then a chance of snow showers after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 36. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers
    and Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers before 7pm. Mostly cloudy, with a low around 21. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 21 °F

    Blustery.
    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 32. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 32 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of rain before 3am, then rain, possibly mixed with snow. Low around 31. West wind around 5 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
A chance of rain and snow before 10am, then a chance of snow showers after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 36. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday Night
A 20 percent chance of snow showers before 7pm. Mostly cloudy, with a low around 21. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 32. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 26.
Monday
Mostly sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 35.
Wednesday Night
Partly cloudy, with a low around 18.
Thursday
Partly sunny, with a high near 33.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 36.
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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:
2:06 am CST Jan 10, 2026
Forecast Valid:
2am CST Jan 10, 2026-6pm CST Jan 16, 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