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.

Partly Cloudy

89°F

32°C

Humidity 34%
Wind Speed W 7 mph
Barometer 30.16 in (1020.7 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 3 Oct 1:54 pm CDT
Extended Forecast for

Byron IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. South southwest wind around 10 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 62. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 62 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 86 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 90. South southwest wind around 10 mph.
Tonight
Mostly clear, with a low around 62. South wind around 5 mph.
Saturday
Sunny, with a high near 89. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 62. South wind around 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 86. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 62.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Monday Night
Showers likely. Mostly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.27°W
Last Update:
2:10 pm CDT Oct 3, 2025
Forecast Valid:
2pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
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