Fort Smith Weather Forecast

    • 60
    • 91

    Slight Chance Thunderstorms

    • 63
    • 92

    Mostly Sunny

    • 66
    • 98

    Hot

    • 66
    • 100

    Hot

    • 58
    • 88

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

Today 17 Aug Bighorn Canyon

Mostly sunny. A 20 percent chance of Showers and Thunderstorms late in the afternoon. Highs in the lower 90s. Northeast Winds 5 to 15 Mph.

Tonight 17 Aug Bighorn Canyon

Mostly cloudy. A 20 percent chance of Showers and Thunderstorms in the evening. Lows around 60. Southwest Winds 5 to 10 Mph.

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Fort Smith Temperature Statistics

August Temperature

Cowley WY (36.7 miles)

  • Lowest 9 August, 2025

    48.2 °F

  • Average August

    72.9 °F

  • Highest 6 August, 2025

    95 °F

Climate (2020–Present)

Cowley WY (36.7 miles)

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  • Average Low 2020–2025

    34 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    59.4 °F
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