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

64°F

18°C

Humidity 86%
Wind Speed S 3 mph
Barometer 30.13 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Aug 10:35 pm CDT
Extended Forecast for

Union IL

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South southwest wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 3pm and 5pm. Mostly cloudy, with a high near 78. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers before 7pm, then a chance of showers after 2am. Mostly cloudy, with a low around 67. South southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 70 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. South southwest wind around 5 mph.
Saturday
A slight chance of showers between 3pm and 5pm. Mostly cloudy, with a high near 78. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers before 7pm, then a chance of showers after 2am. Mostly cloudy, with a low around 67. South southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 15 mph.
Monday
Partly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Mostly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
A chance of showers. Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union IL
 42.24°N 88.53°W
Last Update:
9:06 pm CDT Aug 28, 2026
Forecast Valid:
10pm CDT Aug 28, 2026-6pm CDT Sep 4, 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