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

36°F

2°C

Humidity 64%
Wind Speed Calm
Barometer 30.29 in (1025.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 20 Apr 1:52 am CDT
Extended Forecast for

Port Byron IL

Freeze Warning April 20, 02:19am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning April 20, 02:19am until April 20, 09:00am

    NOW until 9:00am Mon

    Freeze Warning

  • Overnight

    Low: 30 °F

    Clear

  • Monday

    Monday: Widespread frost before 7am. Otherwise, sunny, with a high near 59. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 59 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 10 percent chance of showers after 5pm. Mostly sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Breezy.

    High: 80 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Overnight
Clear, with a low around 30. North wind around 5 mph becoming calm.
Monday
Widespread frost before 7am. Otherwise, sunny, with a high near 59. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 48. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A 10 percent chance of showers after 5pm. Mostly sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 80. Breezy.
Thursday Night
Showers and possibly a thunderstorm. Low around 58. Chance of precipitation is 80%.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 63.
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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 CDT Apr 20, 2026
Forecast Valid:
2am CDT Apr 20, 2026-6pm CDT Apr 26, 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