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.

Fair

65°F

18°C

Humidity 75%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 29 Jul 10:35 pm CDT
Extended Forecast for

3 Miles SSW Marengo IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, clear, with a low around 59. Calm wind.

    Low: 59 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62. South southwest wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 77. Light south wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 80%.

    High: 77 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 61. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

    Low: 61 °F

    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, clear, with a low around 59. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 62. South southwest wind around 5 mph becoming calm in the evening.
Friday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 77. Light south wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 61. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
A chance of showers. Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Marengo IL
 42.2°N 88.62°W
Last Update:
8:31 pm CDT Jul 29, 2026
Forecast Valid:
10pm CDT Jul 29, 2026-6pm CDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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