Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Fair

73°F

23°C

Humidity 73%
Wind Speed S 7 mph
Barometer 30.04 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 29 Aug 11:15 pm CDT
Extended Forecast for

5 Miles ENE Symerton IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 67. South wind around 10 mph.

    Low: 67 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly cloudy, with a low around 70. South wind around 10 mph.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 92. Heat index values as high as 98. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 73. South southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. South wind around 10 mph.
Sunday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 70. South wind around 10 mph.
Monday
Partly sunny, with a high near 92. Heat index values as high as 98. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 73. South southwest wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Symerton IL
 41.34°N 87.95°W
9:30 pm CDT Aug 29, 2026
11pm CDT Aug 29, 2026-6pm CDT Sep 5, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database