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

Hazardous Weather Conditions

Current conditions at

Rockford, Greater Rockford Airport (KRFD)

Lat: 42.19°NLon: 89.09°WElev: 735ft.

Mostly Cloudy and Breezy

48°F

9°C

Humidity 46%
Wind Speed W 24 G 37 mph
Barometer 29.94 in (1014.2 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 18 Apr 1:54 pm CDT
Extended Forecast for

Byron IL

Flood Warning until further notice
Freeze Watch April 20, 12:00am until April 20, 09:00am
Frost Advisory April 19, 12:00am until April 19, 09:00am
Click here for hazard details and duration
Flood Warning until further notice
Freeze Watch
Frost Advisory
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • This Afternoon

    High: 49 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, mostly clear, with a low around 32. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly sunny, with a high near 50. West wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 50 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost after 2am. Otherwise, mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light north northwest after midnight. Winds could gust as high as 15 mph.

    Low: 27 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 55. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 55 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 49. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Tonight
Areas of frost after 2am. Otherwise, mostly clear, with a low around 32. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 50. West wind 5 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Widespread frost after 2am. Otherwise, mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light north northwest after midnight. Winds could gust as high as 15 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 55. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Showers likely. Mostly cloudy, with a low around 59.
Friday
Showers likely. Mostly cloudy, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.27°W
Last Update:
1:21 pm CDT Apr 18, 2026
Forecast Valid:
2pm CDT Apr 18, 2026-6pm CDT Apr 24, 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