Lower Saint Mary Lake Weather Forecast

    • 47
    • 55

    Rain Showers

    • 44
    • 57

    Rain Showers

    • 51
    • 70

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

    • 52
    • 77

    Partly Sunny

Today 21 Jul East Glacier Park Region

Cooler. Rain Showers and slight chance of Thunderstorms late in the Morning, then rain Showers and chance of Thunderstorms in the afternoon. Near steady temperature in the upper 40s. Northeast Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

Tonight 21 Jul East Glacier Park Region

Rain Showers and chance of Thunderstorms in the Evening, then rain Showers likely and chance of Thunderstorms after midnight. Near steady temperature in the upper 40s. East Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

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Lower Saint Mary Lake Temperature Statistics

July Temperature

Cut Bank, Cut Bank Municipal Airport (49.1 miles)

  • Lowest 11 July, 2025

    38.6 °F

  • Average July

    64.8 °F

  • Highest 8 July, 2025

    90.6 °F

Climate (2020–Present)

Cut Bank, Cut Bank Municipal Airport (49.1 miles)

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  • Average Low 2020–2025

    31.5 °F

  • Average 2020–2025

    43.6 °F

  • Average High 2020–2025

    55.2 °F
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