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

85°F

29°C

Humidity 38%
Wind Speed W 8 mph
Barometer 30.16 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 3 Oct 2:35 pm CDT
Extended Forecast for

De Kalb IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 85 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 40%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers before 1pm. Partly sunny, with a high near 69.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 63. South wind around 5 mph.
Saturday
Sunny, with a high near 88. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 61. South wind around 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 62.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 40%.
Monday Night
Showers likely. Mostly cloudy, with a low around 54.
Tuesday
A chance of showers before 1pm. Partly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.92°N 88.76°W
Last Update:
2:10 pm CDT Oct 3, 2025
Forecast Valid:
3pm CDT Oct 3, 2025-6pm CDT Oct 9, 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