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 and Breezy

81°F

27°C

Humidity 58%
Wind Speed S 24 G 33 mph
Barometer 29.70 in (1005.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Apr 12:52 pm CDT
Extended Forecast for

Port Byron IL

Flood Watch until April 18, 04:00am
Tornado Watch until April 17, 08:00pm
Click here for hazard details and duration
Flood Watch
Tornado Watch
  •  
    Flood Watch until April 18, 04:00am
    Tornado Watch until April 17, 08:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 81 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then scattered showers. Some of the storms could be severe. Low around 40. Breezy, with a south wind 10 to 15 mph becoming northwest 15 to 20 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Breezy.
    Severe
    Thunderstorms
    then
    Scattered
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 51. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 51 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 53.

    High: 53 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly after 4pm. Some of the storms could be severe. Partly sunny, with a high near 81. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 1am, then scattered showers. Some of the storms could be severe. Low around 40. Breezy, with a south wind 10 to 15 mph becoming northwest 15 to 20 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Mostly sunny, with a high near 51. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 53.
Sunday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 31.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Byron IL
 41.62°N 90.33°W (Elev. 627 ft)
Last Update:
12:51 pm CDT Apr 17, 2026
Forecast Valid:
12pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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