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.

Fair

18°F

-8°C

Humidity 77%
Wind Speed NA
Barometer 30.00 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 2 Jan 6:55 pm CST
Extended Forecast for

Sycamore IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 17. North northwest wind around 5 mph.

    Low: 17 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 28. North northwest wind around 5 mph becoming west in the afternoon. Winds could gust as high as 10 mph.

    High: 28 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 13. North northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 13 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 28. Calm wind becoming south southeast around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 28 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A slight chance of snow, freezing rain, and sleet before midnight. Mostly cloudy, with a low around 24. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Wintry Mix
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 17. North northwest wind around 5 mph.
Saturday
Mostly cloudy, with a high near 28. North northwest wind around 5 mph becoming west in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Mostly clear, with a low around 13. North northwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
Increasing clouds, with a high near 28. Calm wind becoming south southeast around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Sunday Night
A slight chance of snow, freezing rain, and sleet before midnight. Mostly cloudy, with a low around 24. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A chance of rain. Mostly cloudy, with a high near 49.
Thursday Night
Rain likely. Mostly cloudy, with a low around 37.
Friday
A chance of rain. Mostly cloudy, with a high near 46.
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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:
6:56 pm CST Jan 2, 2026
Forecast Valid:
7pm CST Jan 2, 2026-6pm CST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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