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.

Fog/Mist

38°F

3°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.22 in (1024.0 mb)
Dewpoint 36°F (2°C)
Visibility 5.00 mi
Wind Chill34°F (1°C)
Last update 4 Mar 12:54 am CST
Extended Forecast for

Marengo IL

  • Overnight

    Overnight: Widespread dense fog, mainly after 4am. Otherwise, cloudy, with a low around 31. Northeast wind around 5 mph.

    Low: 31 °F

    Dense Fog

  • Wednesday

    Wednesday: Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 51. East wind 5 to 10 mph.

    High: 51 °F

    Dense Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly after 1am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 40. East northeast wind around 5 mph.

    Low: 40 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before noon. Areas of fog. Otherwise, cloudy, with a high near 48. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.

    High: 48 °F

    Showers
    Likely and
    Areas Fog

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 41. Southeast wind around 5 mph.

    Low: 41 °F

    Patchy Fog

  • Friday

    Friday: A slight chance of showers before 9am, then showers and possibly a thunderstorm between 9am and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before noon. High near 69. Chance of precipitation is 90%.

    High: 69 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Widespread dense fog, mainly after 4am. Otherwise, cloudy, with a low around 31. Northeast wind around 5 mph.
Wednesday
Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 51. East wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of showers, mainly after 1am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 40. East northeast wind around 5 mph.
Thursday
Showers likely, mainly before noon. Areas of fog. Otherwise, cloudy, with a high near 48. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 41. Southeast wind around 5 mph.
Friday
A slight chance of showers before 9am, then showers and possibly a thunderstorm between 9am and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before noon. High near 69. Chance of precipitation is 90%.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 47. Chance of precipitation is 90%.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Mostly sunny, with a high near 60. Breezy.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Showers likely. Partly sunny, with a high near 68. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
12:56 am CST Mar 4, 2026
Forecast Valid:
1am CST Mar 4, 2026-6pm CDT Mar 10, 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