Fort Smith Weather Forecast

    • 78
    • 103

    Hot

    • 79
    • 103

    Hot

    • 79
    • 104

    Hot

    • 78
    • 102

    Slight Chance Thunderstorms

    • 79
    • 102

    Hot

    • 79
    • 103

    Hot

Today 14 Aug North and Central Sebastian

Sunny, hot with Highs around 103. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Heat index Values up to 109.

Tonight 14 Aug North and Central Sebastian

Clear. Lows in the upper 70s. South Winds 5 to 10 Mph.

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Fort Smith Temperature Statistics

August Temperature

Fort Smith Regional Airport (3.7 miles)

  • Lowest 2 August, 2026

    70.6 °F

  • Average August

    87 °F

  • Highest 5 August, 2026

    103.6 °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

    76.4 °F
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