Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Rockwall Municipal Airport (KF46)

Lat: 32.93°NLon: 96.43°WElev: 564ft.

Fair

96°F

36°C

Humidity 40%
Wind Speed W 8 mph
Barometer 29.96 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 26 Aug 2:15 pm CDT
Extended Forecast for

6 Miles ESE Royse City TX

Heat Advisory August 26, 02:36pm until August 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 26, 02:36pm until August 27, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 102 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am.  Partly cloudy, with a low around 75. West northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny and hot, with a high near 100. Heat index values as high as 109. North northwest wind 5 to 10 mph becoming northeast in the afternoon.  Chance of precipitation is 20%.

    High: 100 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm, then a slight chance of showers after 10pm.  Partly cloudy, with a low around 73. Northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers before 1pm.  Sunny, with a high near 98. Calm wind becoming east around 5 mph in the morning.

    High: 98 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. South wind around 5 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 74. Southeast wind around 5 mph.

    Low: 74 °F

    Clear

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 102. Heat index values as high as 109. West northwest wind around 5 mph.
Tonight
A slight chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 75. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 109. North northwest wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Thursday Night
A slight chance of thunderstorms before 7pm, then a slight chance of showers after 10pm. Partly cloudy, with a low around 73. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers before 1pm. Sunny, with a high near 98. Calm wind becoming east around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 99. South wind around 5 mph.
Saturday Night
Clear, with a low around 74. Southeast wind around 5 mph.
Sunday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Sunday Night
Clear, with a low around 74.
Monday
Sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Royse City TX
 32.94°N 96.24°W (Elev. 528 ft)
1:26 pm CDT Aug 26, 2026
2pm CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
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Additional Resources

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