Summit Reservoir Weather Forecast

    • 19
    • 38

    Snow Showers

    • 21
    • 32

    Chance Snow

    • 21
    • 33

    Chance Snow Showers

    • 23
    • 36

    Snow Showers Likely

    • 18
    • 37

    Chance Snow Showers

    • 23
    • 41

    Mostly Sunny

Today 31 Mar Lost River Range

A chance of snow Showers and a slight chance of Thunderstorms in the morning. Then snow Showers likely and a chance of Thunderstorms in the afternoon. Breezy. Snow accumulation of 1 to 3 Inches. Highs 36 to 46.

Tonight 31 Mar Lost River Range

Mostly cloudy with a chance of Thunderstorms and snow Showers in the evening. Then partly cloudy with a slight chance of snow after midnight. Colder. Snow accumulation up to 2 Inches. Lows 20 to 27.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Reservoir Temperature Statistics

March Temperature

Salmon, Lemhi County Airport (58.4 miles)

  • Lowest 1 March, 2025

    17.9 °F

  • Average March

    41 °F

  • Highest 26 March, 2025

    73.7 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (58.4 miles)

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  • Average Low 2020–2025

    32.2 °F

  • Average 2020–2025

    45.2 °F

  • Average High 2020–2025

    57.9 °F
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