Grassy Lake Weather Forecast

    • 48
    • 74

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

    • 53
    • 89

    Mostly Sunny

    • 54
    • 91

    Mostly Sunny

    • 54
    • 85

    Partly Sunny

    • 52
    • 80

    Partly Sunny

Today 4 Aug Eastern Glacier

Sunny. Highs in the mid 70s. Southwest Winds up to 10 Mph.

Tonight 4 Aug Eastern Glacier

Mostly clear. Lows in the upper 40s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Grassy Lake Temperature Statistics

August Temperature

Cut Bank, Cut Bank Municipal Airport (30.4 miles)

  • Lowest 1 August, 2026

    51.1 °F

  • Average August

    74.5 °F

  • Highest 1 August, 2026

    97 °F

Climate (2021–2026)

Cut Bank, Cut Bank Municipal Airport (30.4 miles)

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  • Average Low 2021–2026

    31.5 °F

  • Average 2021–2026

    43.8 °F

  • Average High 2021–2026

    55.5 °F
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