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.

Light Rain

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 63°F (17°C)
Visibility 5.00 mi
Last update 14 Oct 12:55 am CDT
Extended Forecast for

Dekalb IL

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 59. North wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 66. North northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 54. East northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers after 1pm. High near 62. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%.

    High: 62 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely before 1am. Mostly cloudy, with a low around 45. Breezy, with a northeast wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 56. Breezy.

    High: 56 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 59. North wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 66. North northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Wednesday Night
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 54. East northeast wind around 10 mph, with gusts as high as 15 mph.
Thursday
A chance of showers and thunderstorms before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers after 1pm. High near 62. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%.
Thursday Night
Showers likely before 1am. Mostly cloudy, with a low around 45. Breezy, with a northeast wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday
Mostly sunny, with a high near 56. Breezy.
Friday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 33.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 59.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 68.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Dekalb IL
 41.9°N 88.76°W
Last Update:
9:46 pm CDT Oct 13, 2026
Forecast Valid:
1am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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Additional Resources

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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