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

22°F

-6°C

Humidity 85%
Wind Speed S 13 mph
Barometer 29.96 in (1015.9 mb)
Dewpoint 18°F (-8°C)
Visibility 8.00 mi
Wind Chill10°F (-12°C)
Last update 2 Dec 11:54 pm CST
Extended Forecast for

Byron IL

  • Overnight

    Overnight: Patchy blowing snow. Cloudy, with a low around 21. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Patchy
    Blowing Snow

  • Wednesday

    Wednesday: A slight chance of snow before 10am, then a chance of snow showers between 10am and 3pm. Patchy blowing snow before 9am. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 31 °F

    Chance Snow
    Showers and
    Patchy
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -4. Wind chill values as low as -15. Northwest wind 5 to 15 mph.

    Low: -4 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 12. Wind chill values as low as -16. Northwest wind around 5 mph becoming calm.

    High: 12 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -5. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: -5 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 23.

    High: 23 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Chance Snow

Detailed Forecast

Overnight
Patchy blowing snow. Cloudy, with a low around 21. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of snow before 10am, then a chance of snow showers between 10am and 3pm. Patchy blowing snow before 9am. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -4. Wind chill values as low as -15. Northwest wind 5 to 15 mph.
Thursday
Sunny, with a high near 12. Wind chill values as low as -16. Northwest wind around 5 mph becoming calm.
Thursday Night
Partly cloudy, with a low around -5. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Mostly cloudy, with a high near 23.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13.
Saturday
Partly sunny, with a high near 26.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 11.
Sunday
A chance of snow. Mostly cloudy, with a high near 23.
Sunday Night
Mostly cloudy, with a low around 4.
Monday
Partly sunny, with a high near 24.
Monday Night
A chance of snow. Mostly cloudy, with a low around 15.
Tuesday
Mostly cloudy, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.24°W
Last Update:
12:26 am CST Dec 3, 2025
Forecast Valid:
12am CST Dec 3, 2025-6pm CST Dec 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