Afton Weather Forecast

    • 50
    • 87

    Isolated Thunderstorms

    • 48
    • 88

    Mostly Sunny

    • 49
    • 88

    Slight Chance Thunderstorms

    • 49
    • 85

    Chance Rain Showers

    • 46
    • 79

    Rain Showers Likely

    • 46
    • 75

    Rain Showers Likely

Today 21 Aug Star Valley

Partly cloudy. Highs around 90. Southwest Winds around 10 Mph this afternoon.

Tonight 21 Aug Star Valley

Partly cloudy. Hazy. Lows around 50. Northwest Winds around 10 Mph in the evening.

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Afton Temperature Statistics

August Temperature

Afton WY (0.6 miles)

  • Lowest 9 August, 2025

    32 °F

  • Average August

    61.4 °F

  • Highest 19 August, 2025

    86 °F

Climate (2020–Present)

Afton WY (0.6 miles)

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  • Average Low 2020–2025

    25.2 °F

  • Average 2020–2025

    38.7 °F

  • Average High 2020–2025

    51.6 °F
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