Upper Stillwater Lake Weather Forecast

    • 50
    • 82

    Decreasing Clouds

    • 58
    • 89

    Mostly Cloudy

    • 58
    • 88

    Chance Rain

    • 54
    • 88

    Chance Rain Showers

    • 52
    • 87

    Chance Thunderstorms

    • 54
    • 88

    Mostly Sunny

Today 12 Jul Kootenai/Cabinet Region

Mostly cloudy. Highs in the 80s.

Tonight 12 Jul Kootenai/Cabinet Region

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Stillwater Lake Temperature Statistics

July Temperature

Kalispell, Glacier Park International Airport (25.5 miles)

  • Lowest 5 July, 2026

    40.6 °F

  • Average July

    65.5 °F

  • Highest 8 July, 2026

    86.6 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (25.5 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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