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

21°F

-6°C

Humidity 87%
Wind Speed S 14 mph
Barometer 29.85 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 9 Dec 4:35 am CST
Extended Forecast for

De Kalb IL

  • Today

    Today: A chance of rain and sleet after 5pm. Cloudy, with a high near 34. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 34 °F

    Cloudy then
    Chance
    Rain/Sleet

  • Tonight

    Tonight: Rain and sleet before midnight, then a chance of rain between midnight and 4am, then a chance of snow showers after 4am. Low around 28. Breezy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. Little or no snow and sleet accumulation expected.

    Low: 28 °F

    Breezy.
    Rain/Sleet
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Snow showers, mainly before 9am. Temperature falling to around 26 by 5pm. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 31 °F⇓

    Snow Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 12. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 12 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 22. West northwest wind around 5 mph, with gusts as high as 10 mph.

    High: 22 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow. Mostly cloudy, with a high near 24.

    High: 24 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow. Mostly cloudy and cold, with a high near 8.

    High: 8 °F

    Chance Snow

Detailed Forecast

Today
A chance of rain and sleet after 5pm. Cloudy, with a high near 34. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tonight
Rain and sleet before midnight, then a chance of rain between midnight and 4am, then a chance of snow showers after 4am. Low around 28. Breezy, with a south wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. Little or no snow and sleet accumulation expected.
Wednesday
Snow showers, mainly before 9am. Temperature falling to around 26 by 5pm. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 12. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 22. West northwest wind around 5 mph, with gusts as high as 10 mph.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 11.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 24.
Friday Night
Mostly cloudy, with a low around 1.
Saturday
A chance of snow. Mostly cloudy and cold, with a high near 8.
Saturday Night
Partly cloudy, with a low around -7.
Sunday
Mostly sunny and cold, with a high near 7.
Sunday Night
Mostly cloudy, with a low around -4.
Monday
Mostly cloudy, with a high near 20.
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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:
2:51 am CST Dec 9, 2025
Forecast Valid:
4am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation