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

Rockford, Greater Rockford Airport (KRFD)

Lat: 42.19°NLon: 89.09°WElev: 735ft.

Overcast

58°F

14°C

Humidity 90%
Wind Speed S 18 mph
Barometer 29.69 in (1005.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 7 Mar 7:54 am CST
Extended Forecast for

Byron IL

  • Today

    Today: A 50 percent chance of showers, mainly before 10am. Cloudy, with a temperature falling to around 42 by 5pm. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 58 °F⇓

    Chance
    Showers and
    Breezy then
    Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. West northwest wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Showers likely, mainly after noon. Mostly sunny, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers. Cloudy, with a low around 35.

    Low: 35 °F

    Showers

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon. Cloudy, with a high near 45.

    High: 45 °F

    Chance
    Rain/Snow
    then Cloudy

Detailed Forecast

Today
A 50 percent chance of showers, mainly before 10am. Cloudy, with a temperature falling to around 42 by 5pm. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. West northwest wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 44. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 69. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 42.
Tuesday
Showers likely, mainly after noon. Mostly sunny, with a high near 63. Chance of precipitation is 70%.
Tuesday Night
Showers. Cloudy, with a low around 35.
Wednesday
A chance of rain and snow showers before noon. Cloudy, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 47.
Thursday Night
A chance of rain and snow showers. Cloudy, with a low around 35.
Friday
Mostly cloudy, with a high near 55. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.11°N 89.27°W
Last Update:
3:25 am CST Mar 7, 2026
Forecast Valid:
8am CST Mar 7, 2026-6pm CDT Mar 13, 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