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.

Light Snow

13°F

-11°C

Humidity 74%
Wind Speed W 9 mph
Barometer 30.08 in (1020.0 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 17 Jan 11:54 pm CST
Extended Forecast for

Byron IL

  • Overnight

    Overnight: A chance of flurries. Cloudy, with a low around 7. Wind chill values as low as -8. West wind 10 to 15 mph.

    Low: 7 °F

    Chance
    Flurries

  • Sunday

    Sunday: Snow likely, mainly after 4pm. Cloudy, with a high near 19. Wind chill values as low as -9. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 19 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow likely, mainly before 7pm. Mostly cloudy, with a low around -1. Wind chill values as low as -23. Blustery, with a southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: -1 °F

    Blustery.
    Snow Likely
    then Mostly
    Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 6. Wind chill values as low as -24. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 6 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around -1. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: -1 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 25.

    High: 25 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 6.

    Low: 6 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of flurries. Cloudy, with a low around 7. Wind chill values as low as -8. West wind 10 to 15 mph.
Sunday
Snow likely, mainly after 4pm. Cloudy, with a high near 19. Wind chill values as low as -9. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday Night
Snow likely, mainly before 7pm. Mostly cloudy, with a low around -1. Wind chill values as low as -23. Blustery, with a southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
M.L.King Day
Mostly sunny and cold, with a high near 6. Wind chill values as low as -24. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around -1. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 14.
Wednesday
Mostly cloudy, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 6.
Thursday
Mostly sunny, with a high near 19.
Thursday Night
Mostly cloudy, with a low around 9.
Friday
Partly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 2.
Saturday
A chance of snow. Mostly cloudy, with a high near 13.
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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:
11:41 pm CST Jan 17, 2026
Forecast Valid:
12am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation