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.

A Few Clouds and Windy

49°F

9°C

Humidity 39%
Wind Speed NW 26 G 37 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Apr 5:52 pm CDT
Extended Forecast for

Port Byron IL

  • Tonight

    Tonight: Widespread frost, mainly after 5am. Otherwise, clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Clear then
    Frost

  • Sunday

    Sunday: Widespread frost before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 52. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 52 °F

    Frost then
    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Widespread frost after 3am. Otherwise, clear, with a low around 31. Northwest wind 5 to 10 mph becoming light north after midnight.

    Low: 31 °F

    Clear then
    Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 57. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 57 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread frost, mainly after 5am. Otherwise, clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Widespread frost before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 52. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Widespread frost after 3am. Otherwise, clear, with a low around 31. Northwest wind 5 to 10 mph becoming light north after midnight.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 57. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 67.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 61.
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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:
6:06 pm CDT Apr 18, 2026
Forecast Valid:
6pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation