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.

Overcast

64°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 29.89 in (1011.9 mb)
Dewpoint 63°F (17°C)
Visibility 8.00 mi
Last update 21 Sep 9:54 pm CDT
Extended Forecast for

Belvidere IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 15 mph.

    Low: 63 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 78. Southwest wind 5 to 10 mph.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 60. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 72.

    High: 72 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Partly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 63. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 15 mph.
Monday
Partly sunny, with a high near 78. Southwest wind 5 to 10 mph.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.
Wednesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 72.
Wednesday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.
Thursday
A chance of showers. Partly sunny, with a high near 71.
Thursday Night
A chance of showers. Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 53.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belvidere IL
 42.25°N 88.86°W
Last Update:
8:42 pm CDT Sep 21, 2025
Forecast Valid:
10pm CDT Sep 21, 2025-6pm CDT Sep 28, 2025
 
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