Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Rockwall Municipal Airport (KF46)

Lat: 32.93°NLon: 96.43°WElev: 564ft.

Fair

92°F

33°C

Humidity 34%
Wind Speed S 5 mph
Barometer 30.00 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 17 Aug 10:55 pm CDT
Extended Forecast for

4 Miles ENE McLendon-Chisholm TX

Heat Advisory August 17, 11:11pm until August 18, 12:00pm
Extreme Heat Warning August 18, 12:00pm until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Heat Advisory August 17, 11:11pm until August 18, 12:00pm

    NOW until 12:00pm Tue

    Heat Advisory

  • Tonight

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 105. South southwest wind 5 to 10 mph.

    High: 105 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 104. Heat index values as high as 108. Southwest wind around 10 mph.

    High: 104 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 103. South southwest wind 5 to 10 mph.

    High: 103 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 103. West southwest wind around 5 mph.

    High: 103 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 78. South southwest wind around 5 mph.
Tuesday
Sunny and hot, with a high near 105. South southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 104. Heat index values as high as 108. Southwest wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 103. South southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 78. South wind around 5 mph.
Friday
Sunny and hot, with a high near 103. West southwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 77. East southeast wind around 5 mph becoming south after midnight.
Saturday
Sunny and hot, with a high near 102.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny and hot, with a high near 102.
Sunday Night
Mostly clear, with a low around 78.
Monday
Sunny and hot, with a high near 103.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE McLendon-Chisholm TX
 32.85°N 96.29°W (Elev. 551 ft)
6:12 pm CDT Aug 17, 2026
11pm CDT Aug 17, 2026-6pm CDT Aug 24, 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