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

32°F

0°C

Humidity 82%
Wind Speed NA
Barometer 29.89 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 4 Jan 10:35 pm CST
Extended Forecast for

Sycamore IL

  • Tonight

    Tonight: Cloudy early, then clearing, with a low around 29. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Clearing

  • Monday

    Monday: Patchy fog before noon. Otherwise, mostly cloudy, with a high near 40. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 40 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A slight chance of drizzle after midnight. Patchy fog. Otherwise, mostly cloudy, with a low around 34. South southeast wind around 5 mph.

    Low: 34 °F

    Patchy Fog
    then Slight
    Chance
    Drizzle and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of drizzle before noon. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 42. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 42 °F

    Chance
    Drizzle and
    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. West wind around 5 mph, with gusts as high as 10 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain after noon. Partly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

Detailed Forecast

Tonight
Cloudy early, then clearing, with a low around 29. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Patchy fog before noon. Otherwise, mostly cloudy, with a high near 40. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
A slight chance of drizzle after midnight. Patchy fog. Otherwise, mostly cloudy, with a low around 34. South southeast wind around 5 mph.
Tuesday
A chance of drizzle before noon. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 42. South southeast wind 5 to 10 mph becoming west northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 31. West wind around 5 mph, with gusts as high as 10 mph.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
A chance of rain after noon. Partly sunny, with a high near 48.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 34.
Friday
A chance of rain. Mostly cloudy, with a high near 42.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 27.
Saturday
A chance of snow. Mostly cloudy, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Mostly sunny, with a high near 30.
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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:
9:51 pm CST Jan 4, 2026
Forecast Valid:
10pm CST Jan 4, 2026-6pm CST Jan 11, 2026
 
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Additional Resources

Radar & Satellite Image

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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