Summit Reservoir Weather Forecast

    • 43
    • 69

    Breezy

    • 32
    • 54

    Slight Chance Rain/Snow

    • 40
    • 58

    Mostly Cloudy

    • 36
    • 55

    Rain Showers Likely

    • 33
    • 51

    Rain/Snow Likely

    • 35
    • 52

    Chance Rain/Snow

Today 6 Jun Lost River Range

Partly sunny. Windy. Highs 68 to 78. Southwest Winds around 30 Mph in the afternoon.

Tonight 6 Jun Lost River Range

Decreasing Clouds. Breezy, Colder. Lows 42 to 52.

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Summit Reservoir Temperature Statistics

June Temperature

Salmon, Lemhi County Airport (58.4 miles)

  • Lowest 1 June, 2026

    36 °F

  • Average June

    57.6 °F

  • Highest 3 June, 2026

    77 °F

Climate (2021–Present)

Salmon, Lemhi County Airport (58.4 miles)

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  • Average Low 2021–2026

    33.1 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    59.2 °F
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