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

62°F

17°C

Humidity 54%
Wind Speed SW 20 G 29 mph
Barometer 29.92 in (1012.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Apr 8:52 am CDT
Extended Forecast for

Port Byron IL

  • Today

    Today: A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 78. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Southwest wind around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. East wind 5 to 10 mph becoming southwest in the morning.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South wind around 10 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: A 50 percent chance of showers. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 78. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 55. Southwest wind around 5 mph.
Wednesday
Mostly sunny, with a high near 77. East wind 5 to 10 mph becoming southwest in the morning.
Wednesday Night
Mostly clear, with a low around 59. South wind around 10 mph.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 58. Chance of precipitation is 80%.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 68.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 66.
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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:
5:38 am CDT Apr 21, 2026
Forecast Valid:
9am CDT Apr 21, 2026-6pm CDT Apr 27, 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