Black Lake Weather Forecast

    • 49
    • 73

    Increasing Clouds

    • 43
    • 65

    Rain Likely

    • 39
    • 54

    Partly Sunny

    • 38
    • 58

    Partly Sunny

    • 33
    • 49

    Chance Rain/Snow

    • 35
    • 52

    Partly Sunny

Today 12 May Flathead/Mission Valleys

Mostly sunny. Highs in the mid 70s to lower 80s.

Tonight 12 May Flathead/Mission Valleys

Partly cloudy. Lows in the mid 40s to lower 50s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Black Lake Temperature Statistics

May Temperature

Kalispell, Glacier Park International Airport (30.4 miles)

  • Lowest 6 May, 2026

    29.6 °F

  • Average May

    53.7 °F

  • Highest 3 May, 2026

    73.7 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (30.4 miles)

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

  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    57.2 °F
Get WillyWeather+ to remove ads