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.

Fair

76°F

24°C

Humidity 48%
Wind Speed S 9 mph
Barometer 29.97 in (1014.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Oct 12:54 pm CDT
Extended Forecast for

Byron IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. South wind around 10 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 87. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. West northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 68.

    High: 68 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 81. South wind around 10 mph.
Tonight
Increasing clouds, with a low around 62. South wind around 5 mph.
Columbus Day
Mostly sunny, with a high near 87. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 68. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 80. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 50 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 56.
Wednesday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 71.
Wednesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 51.
Thursday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 68.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 60. Breezy.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 56.
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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:
12:36 pm CDT Oct 11, 2026
Forecast Valid:
1pm CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
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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