Gentian Lake Weather Forecast

    • 26
    • 40

    Snow Likely

    • 28
    • 34

    Snow Showers

    • 28
    • 36

    Chance Snow

    • 30
    • 41

    Slight Chance Snow

    • 30
    • 38

    Chance Snow

    • 30
    • 41

    Snow Showers Likely

Today 12 May Western Lemhi County

Partly cloudy. A 20 percent chance of rain in the afternoon. Highs in the upper 50s to mid 60s. Southwest Winds to 15 Mph with Gusts to around 30 Mph.

Tonight 12 May Western Lemhi County

Mostly cloudy with a chance of rain. A chance of snow after midnight. Chance of precipitation 50 percent. Lows in the mid 30s to lower 40s. West Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gentian Lake Temperature Statistics

May Temperature

Salmon, Lemhi County Airport (34.2 miles)

  • Lowest 1 May, 2025

    29.8 °F

  • Average May

    55.2 °F

  • Highest 9 May, 2025

    82.9 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (34.2 miles)

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  • Average Low 2020–2025

    32.2 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    58 °F
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