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.

Fair

73°F

23°C

Humidity 50%
Wind Speed W 9 mph
Barometer 29.88 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 Apr 6:55 pm CDT
Extended Forecast for

Marengo IL

  • Tonight

    Tonight: Mostly clear, with a low around 50. West southwest wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 10 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. East northeast wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 10 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 79 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. West southwest wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 10 mph.
Wednesday
Mostly sunny, with a high near 75. East northeast wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 10 mph.
Wednesday Night
Partly cloudy, with a low around 56. Southeast wind around 5 mph, with gusts as high as 10 mph.
Thursday
Mostly sunny, with a high near 79. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 60%.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 49.
Monday
A chance of showers. Mostly cloudy, with a high near 66. Breezy.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47.
Tuesday
Partly sunny, with a high near 61.
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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:
6:50 pm CDT Apr 21, 2026
Forecast Valid:
7pm CDT Apr 21, 2026-6pm CDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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