Afton Weather Forecast

    • 43
    • 79

    Isolated Thunderstorms

    • 45
    • 82

    Mostly Sunny

    • 48
    • 86

    Mostly Sunny

    • 49
    • 88

    Mostly Sunny

    • 48
    • 89

    Partly Sunny

    • 46
    • 83

    Mostly Sunny

Today 5 Jul Star Valley

Mostly sunny. Isolated Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds in the afternoon. Highs around 80. South Winds around 10 Mph, becoming west with Gusts up to 25 Mph in the afternoon. Chance of rain 20 percent.

Tonight 5 Jul Star Valley

Clear. Lows in the lower 40s. Northwest Winds 10 to 15 Mph in the evening.

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Afton Temperature Statistics

July Temperature

Afton WY (0.6 miles)

  • Lowest 1 July, 2025

    42.8 °F

  • Average July

    64.5 °F

  • Highest 1 July, 2025

    87.8 °F

Climate (2020–Present)

Afton WY (0.6 miles)

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  • Average Low 2020–2025

    25.2 °F

  • Average 2020–2025

    38.8 °F

  • Average High 2020–2025

    51.6 °F
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