Fort Smith Weather Forecast

    • 76
    • 99

    Chance Thunderstorms

    • 77
    • 99

    Hot

    • 78
    • 99

    Hot

    • 78
    • 98

    Hot

    • 79
    • 98

    Hot

    • 79
    • 99

    Hot

Today 7 Aug North and Central Sebastian

Mostly sunny. Scattered Showers and Thunderstorms in the afternoon. Highs in the upper 90s. East Winds around 5 Mph, becoming south around 5 Mph in the afternoon. Chance of rain 30 percent. Heat index Values up to 105.

Tonight 7 Aug North and Central Sebastian

Partly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Lows in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Smith Temperature Statistics

August Temperature

Fort Smith Regional Airport (3.7 miles)

  • Lowest 2 August, 2026

    70 °F

  • Average August

    82.9 °F

  • Highest 4 August, 2026

    99 °F

Climate (2021–2026)

Fort Smith Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    64.9 °F

  • Average High 2021–2026

    76.3 °F
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