Black Lake Weather Forecast

    • 55
    • 78

    Mostly Sunny

    • 49
    • 74

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 49
    • 69

    Chance Thunderstorms

    • 48
    • 64

    Chance Rain Showers

    • 46
    • 62

    Chance Rain Showers

Today 3 Sep Southern Clearwater Mountains

Mostly sunny. Haze through the day. Areas of smoke late in the afternoon. Hot. Highs 83 to 98.

Tonight 3 Sep Southern Clearwater Mountains

Mostly clear. Haze. Lows 48 to 63.

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Black Lake Temperature Statistics

September Temperature

Salmon, Lemhi County Airport (47.8 miles)

  • Lowest 1 September, 2025

    50 °F

  • Average September

    67.6 °F

  • Highest 1 September, 2025

    89.1 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (47.8 miles)

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  • Average Low 2020–2025

    32.2 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    58.3 °F
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