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.

Fog/Mist

38°F

3°C

Humidity 100%
Wind Speed NA
Barometer 29.99 in
Dewpoint 38°F (3°C)
Visibility 2.00 mi
Last update 27 Dec 7:35 am CST
Extended Forecast for

Marengo IL

  • Today

    Today: Patchy fog before noon. Otherwise, cloudy, with a high near 42. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 42 °F

    Patchy Fog
    then Cloudy

  • Tonight

    Tonight: A 50 percent chance of showers, mainly after midnight. Patchy fog. Otherwise, cloudy, with a temperature rising to around 45 by 3am. Southeast wind 5 to 10 mph.

    Low: 41 °F⇑

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers. Patchy fog before noon. High near 55. South southeast wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 55 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain showers likely before 9pm, then snow showers likely, possibly mixed with rain between 9pm and midnight, then a chance of snow showers after midnight. Cloudy, with a low around 16. Wind chill values as low as -3. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Rain/Snow
    Likely and
    Windy

  • Monday

    Monday: A 40 percent chance of snow showers before noon. Mostly cloudy, with a high near 22. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 45 mph.

    High: 22 °F

    Windy. Chance
    Snow Showers
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Blustery.

    Low: 10 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy

Detailed Forecast

Today
Patchy fog before noon. Otherwise, cloudy, with a high near 42. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
A 50 percent chance of showers, mainly after midnight. Patchy fog. Otherwise, cloudy, with a temperature rising to around 45 by 3am. Southeast wind 5 to 10 mph.
Sunday
Showers. Patchy fog before noon. High near 55. South southeast wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
Rain showers likely before 9pm, then snow showers likely, possibly mixed with rain between 9pm and midnight, then a chance of snow showers after midnight. Cloudy, with a low around 16. Wind chill values as low as -3. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday
A 40 percent chance of snow showers before noon. Mostly cloudy, with a high near 22. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 45 mph.
Monday Night
Partly cloudy, with a low around 10. Blustery.
Tuesday
Partly sunny, with a high near 26.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Mostly cloudy, with a high near 28.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 7.
New Year's Day
Mostly sunny, with a high near 15.
Thursday Night
Mostly clear, with a low around 2.
Friday
Sunny, with a high near 18.
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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:
4:51 am CST Dec 27, 2025
Forecast Valid:
7am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation