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

58°F

14°C

Humidity 30%
Wind Speed S 6 mph
Barometer 30.18 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Apr 6:55 pm CDT
Extended Forecast for

Joliet IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 54. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 54 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. North northeast wind around 5 mph becoming south in the afternoon. Winds could gust as high as 10 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. Southeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 54. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 76. North northeast wind around 5 mph becoming south in the afternoon. Winds could gust as high as 10 mph.
Wednesday Night
Mostly clear, with a low around 57. Southeast wind around 5 mph, with gusts as high as 15 mph.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75.
Friday Night
A chance of showers before 1am. Mostly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 64.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 46.
Monday
A chance of showers. Mostly cloudy, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Joliet IL
 41.53°N 88.14°W
Last Update:
7:05 pm CDT Apr 20, 2026
Forecast Valid:
7pm CDT Apr 20, 2026-6pm CDT Apr 27, 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