Flathead Lake - West Shore State Park Weather Forecast

    • 58
    • 82

    Increasing Clouds

    • 54
    • 70

    Rain Showers Likely

    • 53
    • 73

    Rain Showers

    • 55
    • 81

    Mostly Sunny

    • 59
    • 86

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

Today 20 Jul Flathead/Mission Valleys

Mostly cloudy. Highs in the upper 70s to mid 80s. Southwest Winds to 15 Mph in the afternoon.

Tonight 20 Jul Flathead/Mission Valleys

Cloudy with a 20 percent chance of rain Showers. Lows in the 50s. West Winds to 15 Mph.

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Flathead Lake - West Shore State Park Temperature Statistics

July Temperature

Kalispell, Glacier Park International Airport (24.9 miles)

  • Lowest 4 July, 2025

    42.7 °F

  • Average July

    67.5 °F

  • Highest 8 July, 2025

    92.6 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (24.9 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    45.1 °F

  • Average High 2020–2025

    56.8 °F
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