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.

Fair

74°F

23°C

Humidity 99%
Wind Speed S 5 mph
Barometer 29.96 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 4 Sep 12:15 am CDT
Extended Forecast for

Sycamore IL

  • Overnight

    Overnight: Mostly clear, with a low around 73. South wind around 5 mph, with gusts as high as 10 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 92. Heat index values as high as 103. East northeast wind 5 to 10 mph becoming west southwest in the afternoon.

    High: 92 °F

    Slight Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 71. Southwest wind around 5 mph becoming east northeast after midnight. Chance of precipitation is 50%.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Light north northeast wind becoming northeast 5 to 10 mph in the morning.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 73. South wind around 5 mph, with gusts as high as 10 mph.
Friday
A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 92. Heat index values as high as 103. East northeast wind 5 to 10 mph becoming west southwest in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 71. Southwest wind around 5 mph becoming east northeast after midnight. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 86. Light north northeast wind becoming northeast 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 65. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 62.
Labor Day
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sycamore IL
 41.98°N 88.7°W
Last Update:
12:30 am CDT Sep 4, 2026
Forecast Valid:
12am CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
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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