Grays Lake National Wildlife Refuge Weather Forecast

    • 38
    • 72

    Increasing Clouds

    • 42
    • 74

    Mostly Cloudy

    • 42
    • 73

    Partly Sunny

    • 39
    • 72

    Chance Rain Showers

    • 38
    • 72

    Sunny

    • 43
    • 78

    Mostly Sunny

Today 18 Sep Blackfoot Mountains

Sunny. Highs 68 to 77.

Tonight 18 Sep Blackfoot Mountains

Increasing Clouds. Lows 41 to 51.

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Grays Lake National Wildlife Refuge Temperature Statistics

September Temperature

Afton WY (34.2 miles)

  • Lowest 14 September, 2025

    32 °F

  • Average September

    57 °F

  • Highest 1 September, 2025

    80.6 °F

Climate (2020–Present)

Afton WY (34.2 miles)

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  • Average Low 2020–2025

    25.3 °F

  • Average 2020–2025

    38.8 °F

  • Average High 2020–2025

    51.5 °F
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