Blair Lake Weather Forecast

    • 22
    • 38

    Snow Likely

    • 20
    • 29

    Slight Chance Snow

    • 22
    • 34

    Slight Chance Snow

    • 27
    • 42

    Slight Chance Thunderstorms

    • 32
    • 49

    Partly Sunny

    • 36
    • 56

    Partly Sunny

Today 16 May Gallatin and Madison County Mountains and Centennial Mountains

Breezy, cloudy. Chance of rain Showers, snow Showers and slight chance of Thunderstorms in the afternoon. Highs 41 to 51. Southwest Winds 5 to 15 Mph increasing to 15 to 25 Mph in the afternoon. Gusts up to 50 Mph. Chance of precipitation 50 percent.

Tonight 16 May Gallatin and Madison County Mountains and Centennial Mountains

Breezy, Colder. Snow Showers with possible Showers and Thunderstorms likely. Snow accumulation up to 13 Inches. Highs 38 to 50. Lows 18 to 37. Northwest Winds 5 to 25 Mph with Gusts to around 50 Mph. Chance of precipitation near 100 percent.

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Blair Lake Temperature Statistics

May Temperature

West Yellowstone (23.6 miles)

  • Lowest 6 May, 2026

    14 °F

  • Average May

    47.9 °F

  • Highest 13 May, 2026

    77 °F

Climate (2021–Present)

West Yellowstone (23.6 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    66.4 °F
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