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.

Overcast

39°F

4°C

Humidity 79%
Wind Speed NA
Barometer 30.06 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 25 Dec 3:55 pm CST
Extended Forecast for

De Kalb IL

  • Tonight

    Tonight: Showers likely, mainly after midnight. Patchy fog after 1am. Otherwise, cloudy, with a temperature rising to around 43 by 5am. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F⇑

    Scattered
    Showers then
    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: Isolated showers before 9am. Areas of fog before noon. Otherwise, cloudy, with a high near 49. Southeast wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 49 °F

    Isolated
    Showers and
    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 34 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 49. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 49 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after midnight. Cloudy, with a low around 44. Southeast wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.

    Low: 44 °F

    Cloudy then
    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after noon. Cloudy, with a high near 50. Chance of precipitation is 70%.

    High: 50 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 50%.

    Low: 14 °F

    Blustery.
    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 21. Blustery.

    High: 21 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly after midnight. Patchy fog after 1am. Otherwise, cloudy, with a temperature rising to around 43 by 5am. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Isolated showers before 9am. Areas of fog before noon. Otherwise, cloudy, with a high near 49. Southeast wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Saturday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 49. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of rain after midnight. Cloudy, with a low around 44. Southeast wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.
Sunday
Rain likely, mainly after noon. Cloudy, with a high near 50. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 21. Blustery.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 28.
Wednesday Night
Mostly cloudy, with a low around 13.
New Year's Day
Partly sunny, with a high near 24.
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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:
3:11 pm CST Dec 25, 2025
Forecast Valid:
4pm CST Dec 25, 2025-6pm CST Jan 1, 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