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.

Mostly Cloudy

49°F

9°C

Humidity 43%
Wind Speed S 15 mph
Barometer 29.87 in (1012.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 27 Feb 9:54 am CST
Extended Forecast for

Byron IL

  • Today

    Today: Mostly sunny, with a high near 63. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 63 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 27. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 33 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 15. North wind around 10 mph, with gusts as high as 15 mph.

    Low: 15 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 33. East northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 33 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after midnight. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 63. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Tonight
Mostly clear, with a low around 27. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.
Saturday
A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 15. North wind around 10 mph, with gusts as high as 15 mph.
Sunday
Partly sunny, with a high near 33. East northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 39.
Monday Night
A chance of rain after midnight. Mostly cloudy, with a low around 26.
Tuesday
A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A chance of rain. Partly sunny, with a high near 48.
Wednesday Night
Rain likely. Cloudy, with a low around 37.
Thursday
Rain likely. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron IL
 42.13°N 89.27°W
Last Update:
9:06 am CST Feb 27, 2026
Forecast Valid:
10am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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