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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Marengo IL

  • Tonight

    Tonight: A chance of flurries after 3am. Mostly cloudy, with a low around 20. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries before 11am. Partly sunny, with a high near 33. North wind around 10 mph becoming east in the afternoon.

    High: 33 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 19. East wind 5 to 10 mph.

    Low: 19 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 43. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Rain likely, possibly mixed with snow, mainly after midnight. Mostly cloudy, with a low around 31. Southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.

    Low: 31 °F

    Slight Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Rain, mainly before noon. High near 44. Chance of precipitation is 80%.

    High: 44 °F

    Rain then
    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

Detailed Forecast

Tonight
A chance of flurries after 3am. Mostly cloudy, with a low around 20. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
A chance of flurries before 11am. Partly sunny, with a high near 33. North wind around 10 mph becoming east in the afternoon.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 19. East wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 43. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Rain likely, possibly mixed with snow, mainly after midnight. Mostly cloudy, with a low around 31. Southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Tuesday
Rain, mainly before noon. High near 44. Chance of precipitation is 80%.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Wednesday
A chance of rain. Mostly cloudy, with a high near 51.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 39.
Thursday
A chance of rain. Mostly cloudy, with a high near 57.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 43.
Friday
Rain likely. Mostly cloudy, with a high near 62.
Friday Night
Rain likely. Mostly cloudy, with a low around 42.
Saturday
A chance of rain. Mostly cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
6:00 pm CST Feb 28, 2026
Forecast Valid:
8pm CST Feb 28, 2026-6pm CST Mar 7, 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