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

29°F

-2°C

Humidity 85%
Wind Speed Calm
Barometer 29.78 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 5 Dec 11:35 pm CST
Extended Forecast for

Sycamore IL

  • Tonight

    Tonight: A 20 percent chance of snow before 2am. Patchy freezing fog after 3am. Cloudy, with a steady temperature around 26. West northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 26 °F

    Slight Chance
    Snow and
    Patchy
    Freezing Fog

  • Saturday

    Saturday: Patchy freezing fog before 7am. Partly sunny, with a high near 25. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 25 °F

    Patchy
    Freezing Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after midnight. Low around 20. Calm wind becoming east northeast around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 20 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 50 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 22. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 22 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 5. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 5 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 20.

    High: 20 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, possibly mixed with snow, becoming all rain after midnight. Cloudy, with a low around 30.

    Low: 30 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

Tonight
A 20 percent chance of snow before 2am. Patchy freezing fog after 3am. Cloudy, with a steady temperature around 26. West northwest wind around 10 mph, with gusts as high as 15 mph.
Saturday
Patchy freezing fog before 7am. Partly sunny, with a high near 25. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Saturday Night
Snow, mainly after midnight. Low around 20. Calm wind becoming east northeast around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 50 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 22. North wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 5. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Mostly cloudy, with a high near 20.
Monday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 12.
Tuesday
Mostly cloudy, with a high near 35.
Tuesday Night
Rain likely, possibly mixed with snow, becoming all rain after midnight. Cloudy, with a low around 30.
Wednesday
A chance of rain and snow showers before noon, then a chance of snow showers. Mostly cloudy, with a high near 35.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 13.
Thursday
Partly sunny, with a high near 25.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 8.
Friday
Partly sunny, with a high near 17.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sycamore IL
 41.98°N 88.7°W
Last Update:
10:41 pm CST Dec 5, 2025
Forecast Valid:
11pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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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