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

39°F

4°C

Humidity 76%
Wind Speed Calm
Barometer 30.17 in (1022.3 mb)
Dewpoint 32°F (0°C)
Visibility 8.00 mi
Last update 3 Mar 6:54 pm CST
Extended Forecast for

Marengo IL

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °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 48. East wind 5 to 10 mph.

    High: 48 °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. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter 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 49. 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: 49 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 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 Slight
    Chance
    Showers

  • Friday

    Friday: Showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers after 3pm. High near 68. Chance of precipitation is 90%.

    High: 68 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • 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 31. Calm wind.
Wednesday
A 20 percent chance of showers after 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. 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. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before noon. Patchy fog before 8am. Otherwise, cloudy, with a high near 49. 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 20 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 68. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.
Saturday
Mostly cloudy, with a high near 60.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 61. Breezy.
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 48.
Tuesday
A chance of showers. Partly sunny, with a high near 66. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
7:32 pm CST Mar 3, 2026
Forecast Valid:
7pm CST Mar 3, 2026-6pm CDT Mar 10, 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