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.

Fog/Mist

41°F

5°C

Humidity 100%
Wind Speed NA
Barometer 29.84 in
Dewpoint 41°F (5°C)
Visibility 1.50 mi
Last update 27 Dec 5:35 pm CST
Extended Forecast for

Dekalb IL

Wind Advisory December 28, 06:00pm until December 29, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Rain likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a temperature rising to around 48 by 4am. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F⇑

    Rain Likely
    and Patchy
    Fog

  • Sunday

    Sunday: Rain, with thunderstorms also possible after 9am. Areas of fog before noon. High near 54. Breezy, with a south wind 5 to 10 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain and
    Areas Fog

  • Sunday Night

    Sunday Night: Rain before 7pm, then rain and snow between 7pm and 8pm, then snow after 8pm. Some thunder is also possible. Low around 14. Wind chill values as low as -6. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Windy.
    Rain/Snow
    then Snow
    Likely

  • Monday

    Monday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 21. Wind chill values as low as -7. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph.

    High: 21 °F

    Windy. Chance
    Snow then
    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 9. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 9 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Rain likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a temperature rising to around 48 by 4am. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, with thunderstorms also possible after 9am. Areas of fog before noon. High near 54. Breezy, with a south wind 5 to 10 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Rain before 7pm, then rain and snow between 7pm and 8pm, then snow after 8pm. Some thunder is also possible. Low around 14. Wind chill values as low as -6. Windy, with a west wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 21. Wind chill values as low as -7. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph.
Monday Night
Partly cloudy, with a low around 9. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 26.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Mostly cloudy, with a high near 30.
Wednesday Night
A chance of snow before midnight. Mostly cloudy, with a low around 12.
New Year's Day
Mostly sunny, with a high near 19.
Thursday Night
Mostly clear, with a low around 7.
Friday
Mostly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Partly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dekalb IL
 41.9°N 88.76°W
Last Update:
3:31 pm CST Dec 27, 2025
Forecast Valid:
5pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation