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Hazardous Weather Conditions

Current conditions at

De Kalb Taylor Municipal Airport (KDKB)

Lat: 41.93°NLon: 88.71°WElev: 909ft.

Fair

72°F

22°C

Humidity 98%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 29 Jul 1:15 am CDT
Extended Forecast for

Cortland IL

  • Overnight

    Overnight: Patchy fog. Otherwise, increasing clouds, with a low around 71. Calm wind becoming north northwest around 5 mph. Winds could gust as high as 10 mph.

    Low: 71 °F

    Patchy Fog

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. Heat index values as high as 96. Northwest wind 5 to 10 mph becoming south southeast in the morning. Winds could gust as high as 15 mph.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 69. West northwest wind around 5 mph becoming north northeast after midnight.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 76.

    High: 76 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, increasing clouds, with a low around 71. Calm wind becoming north northwest around 5 mph. Winds could gust as high as 10 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. Heat index values as high as 96. Northwest wind 5 to 10 mph becoming south southeast in the morning. Winds could gust as high as 15 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 69. West northwest wind around 5 mph becoming north northeast after midnight.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cortland IL
 41.94°N 88.7°W
Last Update:
1:11 am CDT Jul 29, 2025
Forecast Valid:
1am CDT Jul 29, 2025-6pm CDT Aug 4, 2025
 
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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