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

Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Overcast

64°F

18°C

Humidity 88%
Wind Speed E 15 G 25 mph
Barometer 30.07 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 20 Sep 10:15 pm CDT
Extended Forecast for

Diamond ILSimilar City Names

  • Tonight

    Tonight: Areas of drizzle before 1am, then a chance of showers, mainly between 1am and 4am. Cloudy, with a low around 59. East northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Cloudy, with a high near 64. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 64 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Areas of drizzle before 1am, then a chance of showers, mainly between 1am and 4am. Cloudy, with a low around 59. East northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday
A 20 percent chance of showers before 1pm. Cloudy, with a high near 64. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 54. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 53. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 71.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Diamond ILSimilar City Names
 41.29°N 88.24°W
Last Update:
9:31 pm CDT Sep 20, 2026
Forecast Valid:
10pm CDT Sep 20, 2026-6pm CDT Sep 27, 2026
 
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Additional Resources

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Chance of Precipitation