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

67°F

19°C

Humidity 93%
Wind Speed Calm
Barometer 30.06 in (1017.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 8 Jul 3:54 am CDT
Extended Forecast for

Belvidere IL

  • Today

    Today: Sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 68. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 83. West southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 65. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the morning. Winds could gust as high as 15 mph.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Tonight
A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 68. Southwest wind 5 to 10 mph becoming light after midnight.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 83. West southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 65. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belvidere IL
 42.27°N 88.85°W
Last Update:
4:06 am CDT Jul 8, 2026
Forecast Valid:
4am CDT Jul 8, 2026-6pm CDT Jul 14, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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