Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Overcast

63°F

17°C

Humidity 73%
Wind Speed NE 17 G 22 mph
Barometer 30.15 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 Sep 3:15 pm CDT
Extended Forecast for

4 Miles NW Sycamore IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 64. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 54. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 61. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 61 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49. Northeast wind 5 to 10 mph.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66. East northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 64. East northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Cloudy, with a low around 54. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 61. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 49. Northeast wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 66. East northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 66.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 65.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Sycamore IL
 42.03°N 88.75°W
1:55 pm CDT Sep 21, 2026
3pm CDT Sep 21, 2026-6pm CDT Sep 27, 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