Saint Mary Lake Weather Forecast

    • 31
    • 45

    Chance Rain/Snow

    • 33
    • 47

    Chance Rain

    • 38
    • 54

    Mostly Sunny

    • 38
    • 58

    Chance Rain

    • 37
    • 53

    Chance Rain/Snow

    • 40
    • 60

    Partly Sunny

Today 28 Apr East Glacier Park Region

Not as cool. Partly sunny with a 50 percent chance of snow and rain. Near steady temperature around 40. West Winds 5 to 15 Mph with Gusts to around 30 Mph.

Tonight 28 Apr East Glacier Park Region

Mostly cloudy. Chance of snow and slight chance of rain in the Evening, then slight chance of rain and snow after midnight. Lows in the upper 20s. West Winds up to 10 Mph with Gusts to around 25 Mph. Chance of precipitation 30 percent.

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  • Temperature Real-Time

Saint Mary Lake Temperature Statistics

April Temperature

Kalispell, Glacier Park International Airport (45.4 miles)

  • Lowest 8 April, 2026

    20.6 °F

  • Average April

    43.3 °F

  • Highest 6 April, 2026

    67.6 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (45.4 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    57.2 °F
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