Horte Reservoir Weather Forecast

    • 46
    • 72

    Mostly Sunny

    • 45
    • 75

    Mostly Sunny

    • 46
    • 77

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

    • 46
    • 75

    Partly Sunny

    • 45
    • 72

    Partly Sunny

    • 44
    • 71

    Mostly Cloudy

Today 19 Sep Flathead/Mission Valleys

Mostly cloudy with a 20 percent chance of rain. Highs in the upper 50s to mid 60s.

Tonight 19 Sep Flathead/Mission Valleys

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Horte Reservoir Temperature Statistics

September Temperature

Missoula, Missoula International Airport (43.5 miles)

  • Lowest 9 September, 2026

    38.6 °F

  • Average September

    58.2 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Missoula, Missoula International Airport (43.5 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.7 °F
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