Gardiner Weather Forecast

    • 44
    • 68

    Rain Showers

    • 42
    • 68

    Thunderstorms

    • 42
    • 74

    Mostly Sunny

    • 43
    • 78

    Mostly Sunny

    • 45
    • 80

    Mostly Sunny

    • 46
    • 80

    Partly Sunny

    • 43
    • 76

    Slight Chance Thunderstorms

Today 15 Sep Yellowstone National Park

Partly cloudy with numerous Showers and scattered Thunderstorms. Some Thunderstorms may produce gusty Winds. Near steady temperature in the lower 50s. West Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 60 percent.

Tonight 15 Sep Yellowstone National Park

Mostly cloudy. A chance of rain Showers with a slight chance of Thunderstorms this Evening, then rain Showers likely after midnight. Areas of fog after midnight. Lows in the lower 30s. Northwest Winds around 10 Mph with Gusts up to 25 Mph this evening. Chance of rain 60 percent.

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Gardiner Temperature Statistics

September Temperature

West Yellowstone (31.1 miles)

  • Lowest 6 September, 2025

    28.4 °F

  • Average September

    54.4 °F

  • Highest 3 September, 2025

    82.4 °F

Climate (2020–Present)

West Yellowstone (31.1 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    66.1 °F
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