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

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

61°F

16°C

Humidity 45%
Wind Speed NW 6 mph
Barometer 30.05 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Nov 3:35 pm CST
Extended Forecast for

Cortland IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 64. West northwest wind around 5 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 40. Calm wind becoming south southeast around 5 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: Scattered showers, mainly before 3pm. Mostly cloudy, with a high near 53. South southeast wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

    High: 53 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 43. North wind around 15 mph, with gusts as high as 30 mph.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 64. West northwest wind around 5 mph.
Tonight
Increasing clouds, with a low around 40. Calm wind becoming south southeast around 5 mph.
Veterans Day
Scattered showers, mainly before 3pm. Mostly cloudy, with a high near 53. South southeast wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 34. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 43. North wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Mostly sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 44.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cortland IL
 41.92°N 88.7°W
Last Update:
3:31 pm CST Nov 10, 2026
Forecast Valid:
3pm CST Nov 10, 2026-6pm CST Nov 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation