Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

Rockwall Municipal Airport (KF46)

Lat: 32.93°NLon: 96.43°WElev: 564ft.

Fair

89°F

32°C

Humidity 44%
Wind Speed S 9 mph
Barometer 29.93 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 25 Aug 9:55 pm CDT
Extended Forecast for

Lavon TXSimilar City Names

Heat Advisory until August 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 26, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • Tonight

    Low: 81 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 100. South southwest wind around 10 mph becoming northwest in the afternoon.

    High: 100 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 4am.  Partly cloudy, with a low around 76. Northwest wind around 5 mph becoming northeast after midnight.  Chance of precipitation is 30%.

    Low: 76 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 7am.  Sunny, with a high near 97. North wind 5 to 10 mph.

    High: 97 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. Northeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. East northeast wind around 5 mph.

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 73. East southeast wind around 5 mph.

    Low: 73 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 98. Southeast wind around 5 mph.

    High: 98 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 81. South wind around 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. South southwest wind around 10 mph becoming northwest in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 4am. Partly cloudy, with a low around 76. Northwest wind around 5 mph becoming northeast after midnight. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers, mainly before 7am. Sunny, with a high near 97. North wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 74. Northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 97. East northeast wind around 5 mph.
Friday Night
Clear, with a low around 73. East southeast wind around 5 mph.
Saturday
Sunny, with a high near 98. Southeast wind around 5 mph.
Saturday Night
Clear, with a low around 75. East southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Clear, with a low around 76.
Monday
Sunny, with a high near 98.
Monday Night
Clear, with a low around 76.
Tuesday
Sunny, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
Lavon TXSimilar City Names
 33.03°N 96.43°W (Elev. 525 ft)
7:06 pm CDT Aug 25, 2026
10pm CDT Aug 25, 2026-6pm CDT Sep 1, 2026
 
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