Merrell Lake Weather Forecast

    • 47
    • 83

    Becoming Sunny

    • 45
    • 80

    Mostly Sunny

    • 45
    • 75

    Sunny

    • 44
    • 74

    Mostly Sunny

    • 47
    • 73

    Partly Sunny

    • 39
    • 66

    Rain/Snow Likely

Today 5 Oct Paradise Valley

Sunny. Highs in the mid 80s. Southwest Winds 10 to 20 Mph.

Tonight 5 Oct Paradise Valley

Mostly clear. Lows around 50. South Winds 5 to 15 Mph.

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Merrell Lake Temperature Statistics

October Temperature

West Yellowstone (34.8 miles)

  • Lowest 1 October, 2026

    26.6 °F

  • Average October

    47.5 °F

  • Highest 2 October, 2026

    68 °F

Climate (2021–2026)

West Yellowstone (34.8 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    65.9 °F
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