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.

Light Rain

68°F

20°C

Humidity 90%
Wind Speed N 7 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 65°F (18°C)
Visibility 9.00 mi
Last update 13 Aug 11:54 pm CDT
Extended Forecast for

Belvidere IL

  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 67. East northeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 67 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 79. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 66. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 83. Southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%.

    High: 83 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 68. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 7am. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.

    High: 82 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 67. East northeast wind around 5 mph, with gusts as high as 10 mph.
Friday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 79. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 66. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 83. Southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%.
Saturday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 68. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 40%.
Sunday
A chance of showers, with thunderstorms also possible after 7am. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers. Mostly cloudy, with a high near 80.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Thursday
Partly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belvidere IL
 42.27°N 88.85°W
Last Update:
11:16 pm CDT Aug 13, 2026
Forecast Valid:
12am CDT Aug 14, 2026-6pm CDT Aug 20, 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