Hemlock Lake Weather Forecast

    • 46
    • 63

    Slight Chance Thunderstorms

    • 44
    • 64

    Chance Rain Showers

    • 42
    • 51

    Rain Showers Likely

    • 43
    • 58

    Chance Rain Showers

    • 44
    • 65

    Mostly Sunny

    • 41
    • 59

    Partly Sunny

Today 13 Sep Potomac/Seeley Lake Region

Partly cloudy. Areas of fog in the morning. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the 70s.

Tonight 13 Sep Potomac/Seeley Lake Region

Mostly clear. Patchy fog after midnight. Lows in the 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hemlock Lake Temperature Statistics

September Temperature

Missoula, Missoula International Airport (37.3 miles)

  • Lowest 9 September, 2025

    48 °F

  • Average September

    69 °F

  • Highest 2 September, 2025

    96.1 °F

Climate (2020–Present)

Missoula, Missoula International Airport (37.3 miles)

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  • Average Low 2020–2025

    35.6 °F

  • Average 2020–2025

    47.1 °F

  • Average High 2020–2025

    59.3 °F
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