Grover Weather Forecast

    • 46
    • 77

    Increasing Clouds

    • 43
    • 79

    Mostly Sunny

    • 45
    • 79

    Rain Showers Likely

    • 37
    • 68

    Chance Thunderstorms

    • 39
    • 71

    Partly Sunny

    • 43
    • 75

    Slight Chance Thunderstorms

Today 4 Sep Star Valley

Sunny. Highs in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 4 Sep Star Valley

Mostly clear. Lows in the upper 40s. South Winds 10 to 15 Mph.

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Grover Temperature Statistics

September Temperature

Afton WY (5.6 miles)

  • Lowest 1 September, 2026

    50 °F

  • Average September

    58.3 °F

  • Highest 1 September, 2026

    71.6 °F

Climate (2021–2026)

Afton WY (5.6 miles)

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  • Average Low 2021–2026

    26.3 °F

  • Average 2021–2026

    39.5 °F

  • Average High 2021–2026

    52.2 °F
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