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

84°F

29°C

Humidity 96%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 83°F (28°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 28 Jul 7:55 pm CDT
Extended Forecast for

Joliet IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. North northeast wind around 5 mph becoming calm.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 90. Heat index values as high as 100. North wind 5 to 10 mph becoming south in the afternoon.

    High: 90 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. North northeast wind around 5 mph.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 81 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. North northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 78.

    High: 78 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 74. North northeast wind around 5 mph becoming calm.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 90. Heat index values as high as 100. North wind 5 to 10 mph becoming south in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. North northeast wind around 5 mph.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. North northeast wind around 10 mph, with gusts as high as 15 mph.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Joliet IL
 41.52°N 88.11°W
Last Update:
7:56 pm CDT Jul 28, 2025
Forecast Valid:
8pm CDT Jul 28, 2025-6pm CDT Aug 4, 2025
 
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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