Threats of Heavy Rainfall, Severe Thunderstorms and Dangerous Heat

Several complexes of thunderstorms, some severe with heavy rainfall, will impact areas from the northern Plains, Great Lakes, Ohio Valley to the mid-Atlantic. This threat will shift toward the Carolinas on Friday. Heavy rainfall, remnants of Edouard, continues for portions of eastern Texas through today. In-between these systems, a dome of high pressure and heat for central and eastern states. Read More >

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

98°F

37°C

Humidity 34%
Wind Speed SE 12 G 20 mph
Barometer 29.86 in (1010.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 3 Sep 6:53 pm CDT
Extended Forecast for

Lavaca AR

Heat Advisory September 4, 12:00pm until September 4, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Clear, with a low around 75. South wind 5 to 10 mph becoming light  after midnight.

    Low: 75 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. Heat index values as high as 108. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 103. Heat index values as high as 110. Calm wind becoming east around 5 mph in the afternoon.

    High: 103 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. East wind around 5 mph becoming calm  in the evening.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 105. Calm wind becoming east around 5 mph in the afternoon.

    High: 105 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. East wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny and hot, with a high near 103. East wind around 5 mph.

    High: 103 °F

    Hot

  • Monday Night

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

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 75. South wind 5 to 10 mph becoming light after midnight.
Friday
Sunny and hot, with a high near 101. Heat index values as high as 108. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 103. Heat index values as high as 110. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 74. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 105. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 75. East wind around 5 mph becoming calm in the evening.
Labor Day
Sunny and hot, with a high near 103. East wind around 5 mph.
Monday Night
Mostly clear, with a low around 74. East wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 102. Southeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 75. Southeast wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 101. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph becoming light after midnight.
Thursday
Sunny, with a high near 99. Calm wind becoming southwest around 5 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Lavaca AR
 35.34°N 94.17°W
6:50 pm CDT Sep 3, 2026
7pm CDT Sep 3, 2026-6pm CDT Sep 10, 2026
 
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