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

49°F

9°C

Humidity 88%
Wind Speed S 14 mph
Barometer 29.89 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 4 Nov 11:15 pm CST
Extended Forecast for

De Kalb IL

  • Tonight

    Tonight: Mostly clear, with a low around 49. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 57. Breezy, with a northwest wind 15 to 20 mph becoming northwest 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 57 °F

    Becoming
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 56. Light south southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 56 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after midnight. Cloudy, with a low around 46. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain after noon. Mostly cloudy, with a high near 50.

    High: 50 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 49. South southwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 57. Breezy, with a northwest wind 15 to 20 mph becoming northwest 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.
Wednesday Night
Mostly clear, with a low around 31. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Partly sunny, with a high near 56. Light south southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Rain likely, mainly after midnight. Cloudy, with a low around 46. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 35.
Saturday
A chance of rain after noon. Mostly cloudy, with a high near 50.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 21.
Veterans Day
Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.94°N 88.76°W
Last Update:
9:36 pm CST Nov 4, 2025
Forecast Valid:
11pm CST Nov 4, 2025-6pm CST Nov 11, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation