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

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Fair

89°F

32°C

Humidity 43%
Wind Speed SW 15 G 21 mph
Barometer 29.80 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 12 Oct 2:35 pm CDT
Extended Forecast for

Joliet IL

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 87. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 72. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83. West northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers after 4am. Increasing clouds, with a low around 65. North wind around 5 mph becoming calm. Chance of precipitation is 70%.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 72. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 67. Chance of precipitation is 90%.

    High: 67 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 1am. Cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 60. Breezy.

    High: 60 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Columbus Day
Mostly sunny, with a high near 87. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 72. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 83. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers after 4am. Increasing clouds, with a low around 65. North wind around 5 mph becoming calm. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 72. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 67. Chance of precipitation is 90%.
Thursday Night
A chance of showers before 1am. Cloudy, with a low around 50.
Friday
Partly sunny, with a high near 60. Breezy.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Joliet IL
 41.52°N 88.11°W
Last Update:
2:51 pm CDT Oct 12, 2026
Forecast Valid:
2pm CDT Oct 12, 2026-6pm CDT Oct 18, 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