Saint Marys Lake Weather Forecast

    • 35
    • 37

    Rain/Snow

    • 36
    • 40

    Rain

    • 34
    • 41

    Rain/Snow

    • 33
    • 41

    Rain/Snow

    • 31
    • 37

    Rain/Snow Likely

    • 35
    • 39

    Rain/Snow Likely

    • 34
    • 42

    Chance Rain/Snow

Today 7 Dec Potomac/Seeley Lake Region

Mostly cloudy. Areas of snow in the morning. Areas of rain and a slight chance of snow late in the afternoon. Chance of precipitation 50 percent. Highs in the mid 30s to lower 40s. Southwest Winds to 15 Mph.

Tonight 7 Dec Potomac/Seeley Lake Region

Snow likely and Areas of rain early in the Evening, then Areas of rain and snow in the late evening and overnight. Patchy fog after midnight. Chance of precipitation 70 percent. Snow level 5000 feet. Snow Accumulations of 1 to 2 Inches. Lows in the upper 20s to mid 30s. Very windy with southwest Winds 25 to 35 Mph with Gusts to around 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Saint Marys Lake Temperature Statistics

December Temperature

Missoula, Missoula International Airport (24.9 miles)

  • Lowest 1 December, 2025

    17.1 °F

  • Average December

    29.1 °F

  • Highest 2 December, 2025

    35.1 °F

Climate (2020–Present)

Missoula, Missoula International Airport (24.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    35.8 °F

  • Average 2020–2025

    47.3 °F

  • Average High 2020–2025

    59.4 °F
Get WillyWeather+ to remove ads