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.

Overcast

21°F

-6°C

Humidity 97%
Wind Speed S 13 G 17 mph
Barometer 29.98 in
Dewpoint 20°F (-7°C)
Visibility 7.00 mi
Wind Chill8°F (-13°C)
Last update 2 Dec 9:15 pm CST
Extended Forecast for

Sycamore IL

  • Tonight

    Tonight: Cloudy, with a low around 19. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Cloudy

  • Wednesday

    Wednesday: A chance of snow showers between 10am and 3pm. Cloudy, with a high near 31. South southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 31 °F

    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -3. Wind chill values as low as -17. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: -3 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny and cold, with a high near 10. Wind chill values as low as -18. North northwest wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 10 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -7. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: -7 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 25.

    High: 25 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

Detailed Forecast

Tonight
Cloudy, with a low around 19. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A chance of snow showers between 10am and 3pm. Cloudy, with a high near 31. South southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -3. Wind chill values as low as -17. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny and cold, with a high near 10. Wind chill values as low as -18. North northwest wind 5 to 10 mph becoming south southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around -7. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 22.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13.
Saturday
Mostly cloudy, with a high near 25.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 13.
Sunday
A chance of snow. Mostly cloudy, with a high near 23.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 8.
Monday
Partly sunny, with a high near 24.
Monday Night
A chance of snow. Mostly cloudy, with a low around 16.
Tuesday
Mostly cloudy, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sycamore IL
 41.98°N 88.67°W
Last Update:
4:36 pm CST Dec 2, 2025
Forecast Valid:
9pm CST Dec 2, 2025-6pm CST Dec 9, 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