Fort Smith Weather Forecast

    • 69
    • 90

    Increasing Clouds

    • 70
    • 91

    Partly Sunny

    • 72
    • 93

    Chance Rain Showers

    • 72
    • 92

    Chance Rain Showers

    • 72
    • 91

    Chance Rain Showers

    • 69
    • 85

    Chance Rain Showers

Today 25 Sep North and Central Sebastian

Mostly sunny. Highs around 90. East Winds around 5 Mph.

Tonight 25 Sep North and Central Sebastian

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 60s. East Winds around 5 Mph.

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Fort Smith Temperature Statistics

September Temperature

Fort Smith Regional Airport (3.7 miles)

  • Lowest 19 September, 2026

    70.6 °F

  • Average September

    89.2 °F

  • Highest 4 September, 2026

    106.6 °F

Climate (2021–2026)

Fort Smith Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    54.4 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    76.6 °F
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