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

55°F

13°C

Humidity 62%
Wind Speed SW 10 mph
Barometer 29.70 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 4 May 1:35 am CDT
Extended Forecast for

Sycamore IL

  • Overnight

    Overnight: Clear, with a low around 49. Southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 49 °F

    Clear

  • Monday

    Monday: Patchy blowing dust after 11am. Sunny, with a high near 78. Breezy, with a west southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 78 °F

    Patchy
    Blowing Dust
    and Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Increasing clouds, with a low around 47. West southwest wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers after 7am. Mostly cloudy, with a high near 55. North wind 5 to 10 mph.

    High: 55 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. North wind around 5 mph, with gusts as high as 15 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 49. Southwest wind around 5 mph, with gusts as high as 10 mph.
Monday
Patchy blowing dust after 11am. Sunny, with a high near 78. Breezy, with a west southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Increasing clouds, with a low around 47. West southwest wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Tuesday
A 20 percent chance of showers after 7am. Mostly cloudy, with a high near 55. North wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 38. North wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sycamore IL
 41.98°N 88.7°W
Last Update:
1:36 am CDT May 4, 2026
Forecast Valid:
1am CDT May 4, 2026-6pm CDT May 10, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation