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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Overcast

44°F

7°C

Humidity 71%
Wind Speed SW 10 mph
Barometer 30.09 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 22 Nov 11:15 am CST
Extended Forecast for

De Kalb IL

  • Today

    Today: Mostly cloudy, with a high near 48. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly clear, with a low around 32. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 53. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 33. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 10 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Monday

    Monday: A 20 percent chance of showers after noon. Mostly cloudy, with a high near 53. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 53 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Rain. Low around 45. Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 38. Breezy.

    High: 38 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Today
Mostly cloudy, with a high near 48. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 32. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 53. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Sunday Night
Increasing clouds, with a low around 33. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 10 mph.
Monday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 53. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Rain. Low around 45. Chance of precipitation is 90%.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 38. Breezy.
Wednesday Night
Mostly cloudy, with a low around 24.
Thanksgiving Day
Mostly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.92°N 88.76°W
Last Update:
10:36 am CST Nov 22, 2025
Forecast Valid:
11am CST Nov 22, 2025-6pm CST Nov 28, 2025
 
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