Fort Smith Weather Forecast

    • 74
    • 97

    Hot

    • 73
    • 94

    Mostly Sunny

    • 72
    • 95

    Mostly Sunny

    • 74
    • 97

    Hot

    • 70
    • 94

    Partly Sunny

    • 67
    • 83

    Chance Rain Showers

    • 65
    • 78

    Chance Thunderstorms

Today 20 Aug Sebastian

Mostly sunny. A slight chance of Showers and Thunderstorms. Highs in the mid 90s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 20 Aug Sebastian

Mostly clear. Lows in the lower 70s. Northeast Winds around 5 Mph.

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Fort Smith Temperature Statistics

August Temperature

Fort Smith Regional Airport (3.7 miles)

  • Lowest 3 August, 2025

    70.6 °F

  • Average August

    85 °F

  • Highest 17 August, 2025

    102.7 °F

Climate (2020–Present)

Fort Smith Regional Airport (3.7 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    75 °F
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