National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

82°F

28°C

Humidity 50%
Wind Speed S 17 G 23 mph
Barometer 30.05 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 8 Sep 5:35 pm CDT
Extended Forecast for

Marengo IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 69. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm. Mostly cloudy, with a high near 79. West wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60. West wind around 5 mph, with gusts as high as 10 mph.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77. North wind 5 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 69. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm. Mostly cloudy, with a high near 79. West wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, with a low around 60. West wind around 5 mph, with gusts as high as 10 mph.
Thursday
Mostly sunny, with a high near 77. North wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 77.
Friday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 61.
Saturday
A chance of showers. Partly sunny, with a high near 83.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 60.
Sunday
A chance of showers. Partly sunny, with a high near 78.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 59.
Monday
A chance of showers. Partly sunny, with a high near 79.
Monday Night
Showers likely. Mostly cloudy, with a low around 62.
Tuesday
A chance of showers. Mostly cloudy, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.59°W
Last Update:
1:35 pm CDT Sep 8, 2026
Forecast Valid:
5pm CDT Sep 8, 2026-6pm CDT Sep 15, 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