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.

Light Snow

20°F

-7°C

Humidity 97%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 19°F (-7°C)
Visibility 4.00 mi
Last update 2 Dec 1:35 am CST
Extended Forecast for

Marengo IL

  • Overnight

    Overnight: A 40 percent chance of snow, mainly before 2am. Patchy freezing fog. Mostly cloudy, with a low around 13. West northwest wind around 5 mph.

    Low: 13 °F

    Chance Snow
    and Patchy
    Freezing Fog

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 23. West northwest wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 23 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a temperature rising to around 24 by 5am. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 17 °F⇑

    Cloudy

  • Wednesday

    Wednesday: Snow likely. Cloudy, with a high near 32. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -3. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: -3 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 10.

    High: 10 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -3.

    Low: -3 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of snow, mainly before 2am. Patchy freezing fog. Mostly cloudy, with a low around 13. West northwest wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 23. West northwest wind 5 to 10 mph becoming south southwest in the afternoon.
Tuesday Night
Cloudy, with a temperature rising to around 24 by 5am. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Snow likely. Cloudy, with a high near 32. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around -3. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny and cold, with a high near 10.
Thursday Night
Partly cloudy, with a low around -3.
Friday
Partly sunny, with a high near 22.
Friday Night
Mostly cloudy, with a low around 13.
Saturday
Mostly cloudy, with a high near 25.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 10.
Sunday
A chance of snow. Partly sunny, with a high near 22.
Sunday Night
Mostly cloudy, with a low around 5.
Monday
Mostly cloudy, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
1:41 am CST Dec 2, 2025
Forecast Valid:
1am CST Dec 2, 2025-6pm CST Dec 8, 2025
 
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