Saint Mary Lake Weather Forecast

    • 35
    • 47

    Rain Showers

    • 36
    • 51

    Slight Chance Rain Showers

    • 42
    • 59

    Mostly Sunny

    • 45
    • 65

    Mostly Sunny

    • 42
    • 67

    Rain Showers Likely

    • 38
    • 52

    Rain Showers Likely

Today 29 Apr East Glacier Park Region

Breezy. Snow Showers likely and chance of rain Showers in the Morning, then chance of rain Showers and snow Showers in the afternoon. Snow accumulation of 5 to 8 Inches. Snow level 6500 feet. Highs 40 to 50. West Winds 15 to 25 Mph with Gusts to around 40 Mph. Chance of precipitation 70 percent.

Tonight 29 Apr East Glacier Park Region

Colder. Mostly cloudy. Rain Showers and snow Showers likely in the Evening, then chance of snow Showers and rain Showers after midnight. Snow accumulation up to 2 Inches. Snow level 6000 feet. Lows 30 to 35. West Winds 10 to 20 Mph with Gusts to around 40 Mph decreasing to 5 to 10 Mph after midnight. Chance of precipitation 70 percent.

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Saint Mary Lake Temperature Statistics

April Temperature

Kalispell, Glacier Park International Airport (45.4 miles)

  • Lowest 18 April, 2025

    17.9 °F

  • Average April

    41.9 °F

  • Highest 15 April, 2025

    70.6 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (45.4 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    44.9 °F

  • Average High 2020–2025

    56.5 °F
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