Boat Mountain Weather Forecast

    • 41
    • 64

    Rain Showers Likely

    • 42
    • 64

    Chance Thunderstorms

    • 44
    • 69

    Mostly Sunny

    • 45
    • 70

    Chance Thunderstorms

    • 44
    • 71

    Slight Chance Thunderstorms

    • 45
    • 72

    Mostly Sunny

    • 46
    • 75

    Mostly Sunny

Today 22 Jul Gallatin and Madison County Mountains and Centennial Mountains

Mostly cloudy with a 50 percent chance of Thunderstorms. Near steady temperature in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 22 Jul Gallatin and Madison County Mountains and Centennial Mountains

Colder. Mostly cloudy early in the evening then becoming partly cloudy. A 20 percent chance of Thunderstorms early in the evening. Lows 40 to 45. West Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boat Mountain Temperature Statistics

July Temperature

West Yellowstone (18 miles)

  • Lowest 6 July, 2025

    33.8 °F

  • Average July

    60.7 °F

  • Highest 1 July, 2025

    86 °F

Climate (2020–Present)

West Yellowstone (18 miles)

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  • Average Low 2020–2025

    33.4 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    66.1 °F
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