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.

Unknown Precip

33°F

1°C

Humidity 99%
Wind Speed S 16 mph
Barometer 29.46 in
Dewpoint 33°F (1°C)
Visibility 4.00 mi
Wind Chill23°F (-5°C)
Last update 9 Dec 7:55 pm CST
Extended Forecast for

Sycamore IL

  • Tonight

    Tonight: Rain before 4am, then snow likely. Low around 29. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 29 °F

    Breezy. Rain
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Snow, mainly before 10am. Temperature falling to around 24 by 5pm. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 31 °F⇓

    Blustery.
    Snow then
    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 10. Wind chill values as low as zero. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 10 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 21. Wind chill values as low as 1. West northwest wind around 5 mph becoming south in the afternoon. Winds could gust as high as 10 mph.

    High: 21 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Snow likely. Cloudy, with a low around 18. South southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.

    Low: 18 °F

    Snow Likely

  • Friday

    Friday: A 40 percent chance of snow. Mostly cloudy, with a high near 25.

    High: 25 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 5.

    Low: 5 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Snow likely, mainly after noon. Mostly cloudy, with a high near 11.

    High: 11 °F

    Snow Likely

  • Saturday Night

    Saturday Night: A chance of snow before midnight. Partly cloudy, with a low around -8.

    Low: -8 °F

    Chance Snow
    then Partly
    Cloudy

Detailed Forecast

Tonight
Rain before 4am, then snow likely. Low around 29. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Snow, mainly before 10am. Temperature falling to around 24 by 5pm. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
A 20 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 10. Wind chill values as low as zero. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 21. Wind chill values as low as 1. West northwest wind around 5 mph becoming south in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Snow likely. Cloudy, with a low around 18. South southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 25.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 5.
Saturday
Snow likely, mainly after noon. Mostly cloudy, with a high near 11.
Saturday Night
A chance of snow before midnight. Partly cloudy, with a low around -8.
Sunday
Sunny and cold, with a high near 5.
Sunday Night
Partly cloudy, with a low around -6.
Monday
Partly sunny, with a high near 19.
Monday Night
Mostly cloudy, with a low around 7.
Tuesday
Partly sunny, with a high near 25.
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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:
3:11 pm CST Dec 9, 2025
Forecast Valid:
8pm CST Dec 9, 2025-6pm CST Dec 16, 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