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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

39°F

4°C

Humidity 67%
Wind Speed E 3 mph
Barometer 30.47 in (1032.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 12 Jan 9:53 am CST
Extended Forecast for

Lavaca AR

  • Today

    Today: Sunny, with a high near 61. West wind around 5 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 43. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 43 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54. Northwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 54 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 22. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 46. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 46 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 49. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 61. West wind around 5 mph.
Tonight
Mostly clear, with a low around 34. Calm wind.
Tuesday
Sunny, with a high near 68. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 43. Southwest wind around 5 mph becoming northwest after midnight.
Wednesday
Mostly sunny, with a high near 54. Northwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 22. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 46. Northwest wind around 5 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 28. Southwest wind around 5 mph becoming northwest after midnight.
Friday
Mostly sunny, with a high near 49. West wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 26. West wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 44. West wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 21. Northwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 47. West wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lavaca AR
 35.34°N 94.17°W
Last Update:
6:50 am CST Jan 12, 2026
Forecast Valid:
10am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

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