Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Mostly Cloudy

88°F

31°C

Humidity 71%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 26 Jul 5:35 pm CDT
Extended Forecast for

4 Miles SE Manhattan IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 10 mph.

    Low: 73 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 89. Heat index values as high as 102. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms before 4am.  Mostly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

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

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Thursday Night

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

    Low: 64 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 10 mph.
Monday
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 89. Heat index values as high as 102. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 50 percent chance of showers and thunderstorms before 4am. Mostly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly 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 61. North wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly cloudy, with a low around 64.
Friday
A chance of showers after 1pm. Mostly cloudy, with a high near 81.
Friday Night
A chance of showers. Mostly cloudy, with a low around 65.
Saturday
A chance of showers. Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Manhattan IL
 41.39°N 87.94°W
2:40 pm CDT Jul 26, 2026
5pm CDT Jul 26, 2026-6pm CDT Aug 2, 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