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 Fog/Mist

76°F

24°C

Humidity 97%
Wind Speed S 5 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 75°F (24°C)
Visibility 4.00 mi
Heat Index75°F (24°C)
Last update 16 Aug 1:54 am CDT
Extended Forecast for

Belvidere IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Low around 73. West wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, with a high near 83. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. North northwest wind 5 to 10 mph.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 80. North northwest wind 5 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. Calm wind becoming west southwest around 5 mph after midnight.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Low around 73. West wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, with a high near 83. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 64. North northwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 80. North northwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 61. Calm wind becoming west southwest around 5 mph after midnight.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Wednesday
A chance of showers before 1pm. Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belvidere IL
 42.25°N 88.86°W
Last Update:
2:36 am CDT Aug 16, 2026
Forecast Valid:
2am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
 
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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