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.

A Few Clouds

53°F

12°C

Humidity 47%
Wind Speed SW 20 G 26 mph
Barometer 29.84 in (1010.9 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 8 Mar 11:54 am CDT
Extended Forecast for

Byron IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 45. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Southwest wind around 15 mph, with gusts as high as 20 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. South southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 72. South southwest wind 5 to 15 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 72 °F

    Sunny then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 37. Chance of precipitation is 90%.

    Low: 37 °F

    Showers

  • Wednesday

    Wednesday: Rain showers before 1pm, then a chance of rain and snow showers. High near 46. Breezy. Chance of precipitation is 80%.

    High: 46 °F

    Breezy.
    Showers then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 45. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 69. Southwest wind around 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 47. South southwest wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 72. South southwest wind 5 to 15 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 37. Chance of precipitation is 90%.
Wednesday
Rain showers before 1pm, then a chance of rain and snow showers. High near 46. Breezy. Chance of precipitation is 80%.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
A chance of rain. Cloudy, with a low around 36. Breezy.
Friday
Mostly cloudy, with a high near 51. Breezy.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
A chance of snow. Mostly cloudy, with a high near 42.
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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:
11:16 am CDT Mar 8, 2026
Forecast Valid:
12pm CDT Mar 8, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation