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.

Partly Cloudy

54°F

12°C

Humidity 65%
Wind Speed SE 5 mph
Barometer 30.13 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 9 Oct 1:55 am CDT
Extended Forecast for

Marengo IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 70. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 70 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers before 7pm. Mostly clear, with a low around 57. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Slight Chance
    Showers then
    Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 70. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
A 10 percent chance of showers before 7pm. Mostly clear, with a low around 57. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Increasing clouds, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 56. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 56.
Columbus Day
Mostly sunny, with a high near 80.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
A chance of showers. Partly sunny, with a high near 67.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 52.
Thursday
A chance of showers. Partly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
1:21 am CDT Oct 9, 2026
Forecast Valid:
2am CDT Oct 9, 2026-6pm CDT Oct 15, 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