Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

96°F

36°C

Humidity 32%
Wind Speed E 9 mph
Barometer 29.90 in (1011.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 4 Aug 6:53 pm CDT
Extended Forecast for

Lavaca AR

Heat Advisory August 5, 12:00pm until August 5, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

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

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 99. Heat index values as high as 108. East wind around 5 mph becoming southwest in the morning.

    High: 99 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly clear, with a low around 76. Southeast wind around 5 mph.

    Low: 76 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 99. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon.

    High: 99 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. South wind around 5 mph becoming calm  after midnight.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.

    High: 94 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm  after midnight.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm  after midnight.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Southeast wind around 5 mph.
Wednesday
Sunny, with a high near 99. Heat index values as high as 108. East wind around 5 mph becoming southwest in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76. Southeast wind around 5 mph.
Thursday
Sunny, with a high near 99. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 76. South wind around 5 mph becoming calm after midnight.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Monday
Sunny, with a high near 97. Light southeast wind becoming south 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 97. Light south wind becoming southwest 5 to 10 mph in the morning.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Lavaca AR
 35.34°N 94.17°W
6:50 pm CDT Aug 4, 2026
7pm CDT Aug 4, 2026-6pm CDT Aug 11, 2026
 
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Additional Resources

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