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.

A Few Clouds

37°F

3°C

Humidity 79%
Wind Speed E 5 mph
Barometer 30.18 in (1022.8 mb)
Dewpoint 31°F (-1°C)
Visibility 9.00 mi
Wind Chill33°F (1°C)
Last update 3 Mar 8:54 pm CST
Extended Forecast for

Belvidere IL

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 30. East wind around 5 mph becoming calm after midnight.

    Low: 30 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers after 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 49. East wind 5 to 10 mph.

    High: 49 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 3am. Patchy fog after midnight. Otherwise, cloudy, with a low around 39. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance
    Showers then
    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before noon. Patchy fog before 8am. Otherwise, cloudy, with a high near 50. East northeast wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 70%.

    High: 50 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 40. Calm wind becoming east southeast around 5 mph after midnight. Winds could gust as high as 10 mph.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers after 3pm. High near 67. Chance of precipitation is 100%.

    High: 67 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 30. East wind around 5 mph becoming calm after midnight.
Wednesday
A 20 percent chance of showers after 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 49. East wind 5 to 10 mph.
Wednesday Night
Showers likely, mainly after 3am. Patchy fog after midnight. Otherwise, cloudy, with a low around 39. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly before noon. Patchy fog before 8am. Otherwise, cloudy, with a high near 50. East northeast wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 40. Calm wind becoming east southeast around 5 mph after midnight. Winds could gust as high as 10 mph.
Friday
Showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers after 3pm. High near 67. Chance of precipitation is 100%.
Friday Night
Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Saturday
Partly sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 47.
Tuesday
A chance of showers. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belvidere IL
 42.27°N 88.85°W
Last Update:
9:11 pm CST Mar 3, 2026
Forecast Valid:
9pm CST Mar 3, 2026-6pm CDT Mar 10, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation