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

27°F

-3°C

Humidity 90%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 6 Dec 8:35 pm CST
Extended Forecast for

Sycamore IL

Winter Weather Advisory December 6, 09:00pm until December 7, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Snow, mainly after 9pm. The snow could be heavy at times. Low around 22. Southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.

    Low: 22 °F

    Heavy Snow

  • Sunday

    Sunday: A 50 percent chance of snow before 9am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 12 by 5pm. Wind chill values as low as -1. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 23 °F⇓

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 4. Wind chill values as low as -7. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 15 mph.

    Low: 4 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 20. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 20 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 12. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 12 °F

    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain before midnight, then rain likely, possibly mixed with snow. Low around 32. Chance of precipitation is 80%.

    Low: 32 °F

    Rain then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: A chance of rain and snow before noon. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow

Detailed Forecast

Tonight
Snow, mainly after 9pm. The snow could be heavy at times. Low around 22. Southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.
Sunday
A 50 percent chance of snow before 9am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 12 by 5pm. Wind chill values as low as -1. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 4. Wind chill values as low as -7. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 15 mph.
Monday
Partly sunny, with a high near 20. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 12. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
Rain before midnight, then rain likely, possibly mixed with snow. Low around 32. Chance of precipitation is 80%.
Wednesday
A chance of rain and snow before noon. Mostly cloudy, with a high near 35.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 15.
Thursday
A chance of snow. Mostly cloudy, with a high near 24.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 6.
Friday
Partly sunny, with a high near 14.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
Partly sunny and cold, with a high near 9.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sycamore IL
 41.98°N 88.7°W
Last Update:
8:30 pm CST Dec 6, 2025
Forecast Valid:
8pm CST Dec 6, 2025-6pm CST Dec 13, 2025
 
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