Fort Smith Regional Airport Weather Forecast

    • 70
    • 95

    Chance Thunderstorms

    • 70
    • 94

    Chance Thunderstorms

    • 70
    • 93

    Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

    • 67
    • 86

    Chance Rain Showers

    • 69
    • 88

    Chance Rain Showers

    • 68
    • 88

    Chance Rain Showers

Today 15 Sep Sebastian

Mostly sunny. A chance of Showers and Thunderstorms. Highs in the mid 90s. Northwest Winds around 5 Mph. Chance of rain 30 percent.

Tonight 15 Sep Sebastian

Mostly cloudy with a slight chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Lows in the upper 60s. East Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Real-Time

Fort Smith Regional Airport Temperature Statistics

September Temperature

Fort Smith Regional Airport (0 miles)

  • Lowest 7 September, 2025

    55.9 °F

  • Average September

    74.9 °F

  • Highest 12 September, 2025

    95 °F

Climate (2020–Present)

Fort Smith Regional Airport (0 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    75.1 °F
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