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

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Partly Cloudy

75°F

24°C

Humidity 49%
Wind Speed NW 6 mph
Barometer 30.03 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 2 Sep 4:35 pm CDT
Extended Forecast for

Marengo IL

  • Tonight

    Tonight: Increasing clouds, with a low around 57. Southwest wind around 5 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Periods of showers and thunderstorms before 5pm, then a chance of showers. High near 71. Southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 42 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 52. Breezy, with a south southwest wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph.

    Low: 52 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 57. Southwest wind around 5 mph.
Wednesday
Periods of showers and thunderstorms before 5pm, then a chance of showers. High near 71. Southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Mostly sunny, with a high near 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52. Breezy, with a south southwest wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph.
Friday
Mostly sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 47.
Monday
Partly sunny, with a high near 70.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 72.
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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:
4:11 pm CDT Sep 2, 2025
Forecast Valid:
5pm CDT Sep 2, 2025-6pm CDT Sep 9, 2025
 
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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