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.

Light Snow

18°F

-8°C

Humidity 88%
Wind Speed S 13 mph
Barometer 29.98 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 9 Dec 1:15 am CST
Extended Forecast for

Sycamore IL

  • Overnight

    Overnight: Scattered snow showers, mainly before 2am. Cloudy, with a low around 13. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 13 °F

    Scattered
    Snow Showers

  • Tuesday

    Tuesday: A slight chance of freezing rain between 4pm and 5pm, then a chance of rain or freezing rain. Cloudy, with a high near 34. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 34 °F

    Cloudy then
    Chance
    Rain/Freezing
    Rain

  • Tuesday Night

    Tuesday Night: Freezing rain, possibly mixed with rain, becoming all rain after 8pm. Low around 30. 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 100%. New ice accumulation of less than a 0.1 of an inch possible.

    Low: 30 °F

    Breezy.
    Rain/Freezing
    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Snow likely, mainly before noon. Mostly cloudy, with a high near 32. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 32 °F

    Breezy. Snow
    Likely then
    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 11. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 11 °F

    Chance Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 20.

    High: 20 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 7.

    Low: 7 °F

    Chance Snow

  • Friday

    Friday: A chance of snow. Mostly cloudy, with a high near 19.

    High: 19 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -2.

    Low: -2 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Scattered snow showers, mainly before 2am. Cloudy, with a low around 13. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of freezing rain between 4pm and 5pm, then a chance of rain or freezing rain. Cloudy, with a high near 34. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
Freezing rain, possibly mixed with rain, becoming all rain after 8pm. Low around 30. 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 100%. New ice accumulation of less than a 0.1 of an inch possible.
Wednesday
Snow likely, mainly before noon. Mostly cloudy, with a high near 32. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 11. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 20.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 7.
Friday
A chance of snow. Mostly cloudy, with a high near 19.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
Mostly cloudy and cold, with a high near 6.
Saturday Night
Mostly cloudy, with a low around -4.
Sunday
Mostly sunny, with a high near 12.
Sunday Night
Mostly cloudy, with a low around 2.
Monday
Mostly cloudy, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
Sycamore IL
 41.98°N 88.7°W
Last Update:
12:11 am CST Dec 9, 2025
Forecast Valid:
1am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
Forecast Discussion
 
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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