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

26°F

-3°C

Humidity 84%
Wind Speed NA
Barometer 30.37 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 11 Jan 7:35 pm CST
Extended Forecast for

Marengo IL

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 26. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 26 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 41. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 31. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 47. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 27. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Snow likely, possibly mixed with rain, becoming all snow after noon. Mostly cloudy, with a high near 34. Breezy. Chance of precipitation is 60%.

    High: 34 °F

    Breezy.
    Rain/Snow
    Likely then
    Snow Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 12. Blustery.

    Low: 12 °F

    Slight Chance
    Snow and
    Blustery

  • Thursday

    Thursday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 26. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 41. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 31. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 47. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of rain after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 27. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
Snow likely, possibly mixed with rain, becoming all snow after noon. Mostly cloudy, with a high near 34. Breezy. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 12. Blustery.
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. Mostly cloudy, with a high near 32.
Friday Night
A chance of snow. Mostly cloudy, with a low around 15.
Saturday
A chance of snow. Mostly cloudy, with a high near 22.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Partly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
7:51 pm CST Jan 11, 2026
Forecast Valid:
7pm CST Jan 11, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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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