Calispell Lake Weather Forecast

    • 39
    • 65

    Chance Rain Showers

    • 37
    • 67

    Partly Sunny

    • 39
    • 68

    Mostly Cloudy

    • 39
    • 70

    Partly Sunny

    • 41
    • 73

    Partly Sunny

    • 42
    • 75

    Partly Sunny

Today 29 Sep Northeast Mountains

Mostly cloudy. A chance of rain Showers. Highs in the upper 50s to mid 60s. South wind 5 to 15 Mph in the afternoon. Gusts up to 35 Mph in the Mountains. Chance of precipitation 50 percent.

Tonight 29 Sep Northeast Mountains

Mostly cloudy. A chance of rain Showers in the evening. Lows in the 40s. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Calispell Lake Temperature Statistics

September Temperature

Deer Park, Deer Park Airport (21.1 miles)

  • Lowest 24 September, 2026

    37.7 °F

  • Average September

    58.2 °F

  • Highest 1 September, 2026

    81.6 °F

Climate (2021–2026)

Deer Park, Deer Park Airport (21.1 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    60.1 °F
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