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

79°F

26°C

Humidity 44%
Wind Speed SW 20 G 29 mph
Barometer 29.76 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 30 Mar 4:35 pm CDT
Extended Forecast for

De Kalb IL

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 60. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 74. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 36. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 36 °F

    T-storms
    Likely then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 43. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    High: 43 °F

    Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 37. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.

    Low: 37 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 67. Breezy. Chance of precipitation is 100%.

    High: 67 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 45. Breezy. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 60. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 74. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 36. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 43. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 37. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Thursday
Showers and possibly a thunderstorm. High near 67. Breezy. Chance of precipitation is 100%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 45. Breezy. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 66.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 46.
Saturday
Showers likely. Mostly cloudy, with a high near 63. Breezy.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 49. Breezy.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
De Kalb IL
 41.92°N 88.76°W
Last Update:
4:36 pm CDT Mar 30, 2026
Forecast Valid:
4pm CDT Mar 30, 2026-6pm CDT Apr 6, 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