Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Fog

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 29.67 in
Dewpoint 73°F (23°C)
Visibility 0.50 mi
Last update 28 Jul 1:35 am CDT
Extended Forecast for

5 Miles WNW Peotone IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 70. West wind around 10 mph becoming north. Winds could gust as high as 20 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 82. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 82 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. North northeast wind around 5 mph, with gusts as high as 15 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. West wind around 10 mph becoming north. Winds could gust as high as 20 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 82. North wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 60. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 82. North northeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 60. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 64.
Friday
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82.
Friday Night
A chance of showers. Mostly cloudy, with a low around 66.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Peotone IL
 41.36°N 87.89°W
1:15 am CDT Jul 28, 2026
1am CDT Jul 28, 2026-6pm CDT Aug 3, 2026
 
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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