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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

Rockwall Municipal Airport (KF46)

Lat: 32.93°NLon: 96.43°WElev: 564ft.

Fair

87°F

31°C

Humidity 56%
Wind Speed S 15 G 18 mph
Barometer 29.90 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 13 Aug 12:55 am CDT
Extended Forecast for

Wylie TX

Heat Advisory August 13, 01:10am until August 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 13, 01:10am until August 13, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Overnight

    Low: 79 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Heat index values as high as 104. South wind 15 to 20 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 78. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Heat index values as high as 103. South wind around 15 mph, with gusts as high as 25 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 79. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. South wind around 10 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 79. South wind around 10 mph.

    Low: 79 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. South southwest wind 5 to 10 mph.

    High: 99 °F

    Hot

Detailed Forecast

Overnight
Clear, with a low around 79. South wind around 15 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 100. Heat index values as high as 104. South wind 15 to 20 mph.
Thursday Night
Clear, with a low around 78. South wind around 15 mph, with gusts as high as 20 mph.
Friday
Sunny and hot, with a high near 99. Heat index values as high as 103. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 79. South wind around 15 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 99. South wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 79. South wind around 10 mph.
Sunday
Sunny and hot, with a high near 99. South southwest wind 5 to 10 mph.
Sunday Night
Clear, with a low around 78. South wind around 5 mph.
Monday
Sunny and hot, with a high near 100.
Monday Night
Clear, with a low around 80.
Tuesday
Sunny and hot, with a high near 100.
Tuesday Night
Clear, with a low around 80.
Wednesday
Sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wylie TX
 33.03°N 96.51°W (Elev. 509 ft)
Last Update:
10:31 pm CDT Aug 12, 2026
Forecast Valid:
1am CDT Aug 13, 2026-6pm CDT Aug 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation