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.

Partly Cloudy

81°F

27°C

Humidity 45%
Wind Speed W 10 mph
Barometer 30.04 in (1016.8 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Aug 3:54 pm CDT
Extended Forecast for

Winnebago IL

  • Tonight

    Tonight: Mostly clear, with a low around 59. Northwest wind around 5 mph becoming southwest after midnight.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 78 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. West southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Calm wind becoming north around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers after 1pm. Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Partly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Northwest wind around 5 mph becoming southwest after midnight.
Tuesday
A slight chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. West southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 78. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 57. Calm wind.
Thursday
Sunny, with a high near 78.
Thursday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 58.
Friday
A chance of showers after 1pm. Mostly sunny, with a high near 78.
Friday Night
A chance of showers. Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winnebago IL
 42.26°N 89.24°W
Last Update:
2:46 pm CDT Aug 17, 2026
Forecast Valid:
4pm CDT Aug 17, 2026-6pm CDT Aug 24, 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