Hope Lake Weather Forecast

    • 36
    • 46

    Rain Showers Likely

    • 40
    • 60

    Mostly Sunny

    • 43
    • 64

    Sunny

    • 44
    • 65

    Mostly Sunny

    • 44
    • 64

    Partly Sunny

    • 42
    • 62

    Chance Rain

Today 15 Sep Bitterroot/Sapphire Mountains

Rain likely in the Morning, then chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Chance of precipitation 70 percent. Highs in the 50s to lower 60s.

Tonight 15 Sep Bitterroot/Sapphire Mountains

Partly cloudy. Lows in the mid 30s to lower 40s.

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  • Temperature Real-Time

Hope Lake Temperature Statistics

September Temperature

Salmon, Lemhi County Airport (52.8 miles)

  • Lowest 12 September, 2025

    39.9 °F

  • Average September

    61.5 °F

  • Highest 3 September, 2025

    90 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (52.8 miles)

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  • Average Low 2020–2025

    32.3 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    58.3 °F
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