Amend Park Weather Forecast

    • 43
    • 70

    Breezy

    • 46
    • 74

    Mostly Sunny

    • 45
    • 71

    Mostly Sunny

    • 52
    • 79

    Partly Sunny

    • 50
    • 77

    Slight Chance Rain Showers

    • 48
    • 75

    Mostly Sunny

Today 14 Sep Southwestern Yellowstone

Decreasing Clouds. A 20 percent chance of rain Showers early in the morning. Windy in the afternoon. Cooler. Highs in the upper 60s. West Winds 15 to 25 Mph in the morning increasing to 20 to 35 Mph with Gusts to around 45 Mph in the afternoon.

Tonight 14 Sep Southwestern Yellowstone

Mostly clear. Lows in the lower 40s. Northwest Winds 10 to 20 Mph in the evening becoming southwest 5 to 10 Mph overnight.

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Amend Park Temperature Statistics

September Temperature

Billings, Billings Logan International Airport (3.1 miles)

  • Lowest 9 September, 2026

    46.7 °F

  • Average September

    68.1 °F

  • Highest 4 September, 2026

    92.6 °F

Climate (2021–2026)

Billings, Billings Logan International Airport (3.1 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    61.2 °F
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