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

78°F

26°C

Humidity 84%
Wind Speed W 3 mph
Barometer 29.96 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Jul 10:15 pm CDT
Extended Forecast for

Joliet IL

  • Tonight

    Tonight: Mostly clear, with a low around 64. West northwest wind around 5 mph.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. West northwest wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. Heat index values as high as 95. South southwest wind around 5 mph, with gusts as high as 15 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88.

    High: 88 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 64. West northwest wind around 5 mph.
Sunday
Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 64. West northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 90. Heat index values as high as 95. South southwest wind around 5 mph, with gusts as high as 15 mph.
Monday Night
Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 86.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Joliet IL
 41.53°N 88.14°W
Last Update:
7:41 pm CDT Jul 12, 2025
Forecast Valid:
10pm CDT Jul 12, 2025-6pm CDT Jul 19, 2025
 
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