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

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Fair

78°F

26°C

Humidity 59%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 8 Sep 8:15 pm CDT
Extended Forecast for

Joliet IL

  • Tonight

    Tonight: Isolated showers after 5am. Mostly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 10%.

    Low: 72 °F

    Partly Cloudy
    then Isolated
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 11am, then scattered showers between 11am and 1pm. Mostly cloudy, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely then
    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65. West wind around 5 mph.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 79. North wind around 5 mph.

    High: 79 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. North northeast wind around 5 mph becoming calm after midnight.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers before 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers after 5am. Mostly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 10%.
Wednesday
Showers and thunderstorms likely before 11am, then scattered showers between 11am and 1pm. Mostly cloudy, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, with a low around 65. West wind around 5 mph.
Thursday
Partly sunny, with a high near 79. North wind around 5 mph.
Thursday Night
Mostly clear, with a low around 54. North northeast wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 64.
Saturday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 65.
Sunday
A chance of showers. Partly sunny, with a high near 82.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 63.
Monday
A chance of showers. Partly sunny, with a high near 83.
Monday Night
Showers likely. Mostly cloudy, with a low around 66.
Tuesday
A chance of showers. Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Joliet IL
 41.55°N 88.14°W
Last Update:
8:00 pm CDT Sep 8, 2026
Forecast Valid:
8pm CDT Sep 8, 2026-6pm CDT Sep 15, 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