National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Fire Weather Concerns and Severe Weather

Dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the northern and central High Plains through this weekend, where fuels remain largely receptive. Severe thunderstorms and heavy rainfall are possible from the Plains into the Upper Midwest, as well as in the Ohio Valley and portions of the Mid-Atlantic through this weekend. Read More >

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

73°F

23°C

Humidity 62%
Wind Speed SE 5 mph
Barometer 29.90 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 11 Sep 6:55 pm CDT
Extended Forecast for

Sycamore IL

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83. South wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. North northwest wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 75. North wind 5 to 10 mph.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 52. North northeast wind around 5 mph.

    Low: 52 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82.

    High: 82 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. Southeast wind around 5 mph, with gusts as high as 10 mph.
Saturday
Mostly sunny, with a high near 83. South wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 58. North northwest wind around 5 mph.
Sunday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 75. North wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 52. North northeast wind around 5 mph.
Monday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 74.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82.
Tuesday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61.
Wednesday
Showers likely. Mostly cloudy, with a high near 73.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 60.
Thursday
A chance of showers. Partly sunny, with a high near 76.
Thursday Night
A chance of showers. Partly cloudy, with a low around 56.
Friday
A chance of showers. Mostly sunny, with a high near 72.
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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:
5:26 pm CDT Sep 11, 2026
Forecast Valid:
7pm CDT Sep 11, 2026-6pm CDT Sep 18, 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