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

63°F

17°C

Humidity 76%
Wind Speed E 5 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 Oct 4:54 pm CDT
Extended Forecast for

Byron IL

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 52. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers, mainly after 10am. High near 58. East wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 1am. Cloudy, with a low around 46. Breezy, with a north northeast wind 10 to 15 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 7am. Partly sunny, with a high near 54. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 54 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. Breezy, with a north wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 32 °F

    Partly Cloudy
    and Breezy
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 52. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Showers, mainly after 10am. High near 58. East wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Showers likely, mainly before 1am. Cloudy, with a low around 46. Breezy, with a north northeast wind 10 to 15 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of showers, mainly after 7am. Partly sunny, with a high near 54. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.
Friday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. Breezy, with a north wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58.
Saturday Night
Clear, with a low around 36.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Mostly sunny, with a high near 73.
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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:
3:56 pm CDT Oct 14, 2026
Forecast Valid:
6pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation