Flathead Lake Weather Forecast

    • 57
    • 64

    Partly Sunny

    • 60
    • 75

    Mostly Sunny

    • 58
    • 77

    Sunny

    • 62
    • 80

    Mostly Sunny

    • 64
    • 83

    Mostly Sunny

    • 61
    • 77

    Mostly Cloudy

    • 62
    • 75

    Mostly Cloudy

Today 17 Aug Flathead/Mission Valleys

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flathead Lake Temperature Statistics

August Temperature

Kalispell, Glacier Park International Airport (30.4 miles)

  • Lowest 13 August, 2019

    42.1 °F
  • Average August

    67.7 °F
  • Highest 7 August, 2019

    93 °F

Climate (2010–Present)

Kalispell, Glacier Park International Airport (30.4 miles)

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  • Average Low 2010–Present

    33.2 °F
  • Average 2010–Present

    44.8 °F
  • Average High 2010–Present

    55.6 °F
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