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.

Overcast

24°F

-4°C

Humidity 78%
Wind Speed NA
Barometer 30.19 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 11 Jan 5:35 am CST
Extended Forecast for

Marengo IL

  • Overnight

    Overnight: Scattered flurries with a slight chance of snow showers. Cloudy, with a low around 20. Blustery, with a northwest wind around 20 mph, with gusts as high as 35 mph.

    Low: 20 °F

    Slight Chance
    Snow Showers
    and Blustery

  • Sunday

    Sunday: Scattered flurries before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 32. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 32 °F

    Scattered
    Flurries and
    Breezy then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. West southwest wind 10 to 15 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers before noon. Partly sunny, with a high near 48.

    High: 48 °F

    Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain showers between midnight and 3am, then a slight chance of snow showers after 3am. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of snow showers. Mostly cloudy, with a high near 31. Blustery.

    High: 31 °F

    Chance Snow
    Showers and
    Blustery

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Scattered flurries with a slight chance of snow showers. Cloudy, with a low around 20. Blustery, with a northwest wind around 20 mph, with gusts as high as 35 mph.
Sunday
Scattered flurries before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 32. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.
Sunday Night
Partly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 40. West southwest wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 31. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
A 30 percent chance of showers before noon. Partly sunny, with a high near 48.
Tuesday Night
A slight chance of rain showers between midnight and 3am, then a slight chance of snow showers after 3am. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 31. Blustery.
Wednesday Night
Mostly cloudy, with a low around 14.
Thursday
Mostly sunny, with a high near 26.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20.
Friday
A chance of snow showers. Mostly cloudy, with a high near 32.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 16.
Saturday
Partly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
4:26 am CST Jan 11, 2026
Forecast Valid:
5am CST Jan 11, 2026-6pm CST Jan 17, 2026
 
Forecast Discussion
 
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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