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.

Fog/Mist

35°F

2°C

Humidity 100%
Wind Speed E 5 mph
Barometer 30.39 in
Dewpoint 35°F (2°C)
Visibility 4.00 mi
Wind Chill31°F (-1°C)
Last update 11 Apr 3:15 am CDT
Extended Forecast for

Marengo IL

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, increasing clouds, with a high near 57. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 57 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 48. East southeast wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 48 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 60. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    Low: 60 °F

    Showers and
    Breezy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 34. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, increasing clouds, with a high near 57. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
A 40 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 48. East southeast wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Sunday Night
Showers and possibly a thunderstorm. Low around 60. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Partly sunny, with a high near 77.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 58.
Thursday
A chance of showers. Mostly sunny, with a high near 77.
Thursday Night
A chance of showers. Partly cloudy, with a low around 57.
Friday
A chance of showers. Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marengo IL
 42.24°N 88.62°W
Last Update:
3:06 am CDT Apr 11, 2026
Forecast Valid:
3am CDT Apr 11, 2026-6pm CDT Apr 17, 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