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.

Fair

36°F

2°C

Humidity 91%
Wind Speed NW 12 mph
Barometer 30.15 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 23 Nov 7:35 am CST
Extended Forecast for

De Kalb IL

  • Today

    Today: Sunny, with a high near 53. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 33. South wind around 5 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Monday

    Monday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 50. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 50 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain likely. Cloudy, with a low around 44. South wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    Low: 44 °F

    Rain Likely

  • Tuesday

    Tuesday: A 20 percent chance of rain. Mostly cloudy, with a high near 56. Southwest wind 5 to 10 mph.

    High: 56 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

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

    High: 38 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. Northwest wind around 5 mph becoming southwest in the afternoon.
Tonight
Increasing clouds, with a low around 33. South wind around 5 mph.
Monday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 50. South wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Rain likely. Cloudy, with a low around 44. South wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Tuesday
A 20 percent chance of rain. Mostly cloudy, with a high near 56. Southwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 38. Breezy.
Wednesday Night
Partly cloudy, with a low around 22.
Thanksgiving Day
Mostly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 32.
Friday Night
A chance of snow. Mostly cloudy, with a low around 22.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.92°N 88.76°W
Last Update:
6:16 am CST Nov 23, 2025
Forecast Valid:
7am CST Nov 23, 2025-6pm CST Nov 29, 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