Summit Reservoir Weather Forecast

    • 22
    • 36

    Increasing Clouds

    • 25
    • 42

    Partly Sunny

    • 36
    • 50

    Partly Sunny

    • 26
    • 52

    Partly Sunny

    • 31
    • 49

    Partly Sunny

    • 36
    • 55

    Mostly Cloudy

Today 18 Apr Lost River Range

Mostly sunny. Isolated snow Showers in the afternoon. Highs 36 to 46.

Tonight 18 Apr Lost River Range

Mostly cloudy with isolated snow Showers in the evening. Then mostly clear after midnight. Lows 23 to 30.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Reservoir Temperature Statistics

April Temperature

Salmon, Lemhi County Airport (58.4 miles)

  • Lowest 1 April, 2024

    24.9 °F

  • Average April

    47.6 °F

  • Highest 12 April, 2024

    77.6 °F

Climate (2019–Present)

Salmon, Lemhi County Airport (58.4 miles)

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  • Average Low 2019–2024

    32 °F

  • Average 2019–2024

    44.8 °F

  • Average High 2019–2024

    57.3 °F
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