Mammoth Weather Forecast

    • 30
    • 55

    Mostly Sunny

    • 36
    • 63

    Mostly Sunny

    • 40
    • 65

    Mostly Sunny

    • 40
    • 64

    Rain Showers Likely

    • 35
    • 51

    Chance Rain/Snow

    • 37
    • 56

    Chance Rain Showers

Today 1 May Yellowstone National Park

Partly cloudy in the Morning, then clearing. Highs in the upper 40s. Northwest Winds around 10 Mph.

Tonight 1 May Yellowstone National Park

Clear. Lows in the mid 20s. Northeast Winds around 10 Mph in the evening.

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Mammoth Temperature Statistics

May Temperature

West Yellowstone (28 miles)

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  • Average May

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Climate (2020–Present)

West Yellowstone (28 miles)

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  • Average Low 2020–2025

    33.4 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    65.7 °F
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