Basin Lake Weather Forecast

    • 29
    • 56

    Chance Snow

    • 24
    • 32

    Snow

    • 17
    • 28

    Snow Showers

    • 14
    • 23

    Chance Snow

    • 18
    • 28

    Slight Chance Snow

    • 22
    • 32

    Chance Snow

    • 24
    • 34

    Slight Chance Snow

Today 21 Apr Eastern Lemhi County

Partly cloudy. Highs in the 70s. Southeast Winds to 15 Mph increasing to south 20 to 30 Mph in the afternoon.

Tonight 21 Apr Eastern Lemhi County

Partly cloudy until early Morning, then a 20 percent chance of rain late in the night. Lows in the upper 30s to mid 40s. South Winds to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

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Basin Lake Temperature Statistics

April Temperature

Salmon, Lemhi County Airport (18.6 miles)

  • Lowest 18 April, 2026

    19.9 °F

  • Average April

    44.9 °F

  • Highest 19 April, 2026

    71.1 °F

Climate (2021–Present)

Salmon, Lemhi County Airport (18.6 miles)

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  • Average Low 2021–2026

    33 °F

  • Average 2021–2026

    46.1 °F

  • Average High 2021–2026

    59.1 °F
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