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.

A Few Clouds

17°F

-8°C

Humidity 62%
Wind Speed W 5 mph
Barometer 30.03 in (1018.3 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 15 Jan 9:54 am CST
Extended Forecast for

Byron IL

  • Today

    Today: A 20 percent chance of flurries with a slight chance of snow after 4pm. Increasing clouds, with a high near 25. North northwest wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 25 °F

    Sunny then
    Slight Chance
    Snow

  • Tonight

    Tonight: Snow likely, mainly between 7pm and midnight. Cloudy, with a temperature falling to near 23 by 8pm, then rising to around 28 during the remainder of the night. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 23 °F⇑

    Snow Likely

  • Friday

    Friday: A 30 percent chance of snow showers. Mostly cloudy, with a high near 36. West wind around 15 mph, with gusts as high as 30 mph.

    High: 36 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 13. Wind chill values as low as -1. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 13 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of flurries with a slight chance of snow showers before noon, then a chance of snow showers after noon. Mostly cloudy, with a high near 17. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 17 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: A chance of flurries before midnight. Mostly cloudy, with a low around 6.

    Low: 6 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries after noon. Mostly cloudy, with a high near 16.

    High: 16 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Mostly cloudy, with a low around 2.

    Low: 2 °F

    Chance
    Flurries

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 8.

    High: 8 °F

    Cold

Detailed Forecast

Today
A 20 percent chance of flurries with a slight chance of snow after 4pm. Increasing clouds, with a high near 25. North northwest wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
Snow likely, mainly between 7pm and midnight. Cloudy, with a temperature falling to near 23 by 8pm, then rising to around 28 during the remainder of the night. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday
A 30 percent chance of snow showers. Mostly cloudy, with a high near 36. West wind around 15 mph, with gusts as high as 30 mph.
Friday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 13. Wind chill values as low as -1. West northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
A chance of flurries with a slight chance of snow showers before noon, then a chance of snow showers after noon. Mostly cloudy, with a high near 17. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday Night
A chance of flurries before midnight. Mostly cloudy, with a low around 6.
Sunday
A chance of flurries after noon. Mostly cloudy, with a high near 16.
Sunday Night
A chance of flurries before midnight. Mostly cloudy, with a low around 2.
M.L.King Day
Partly sunny and cold, with a high near 8.
Monday Night
Partly cloudy, with a low around -2.
Tuesday
Mostly sunny, with a high near 14.
Tuesday Night
Mostly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 25.
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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:
6:51 am CST Jan 15, 2026
Forecast Valid:
10am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
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