Whitney Portal Weather Forecast

    • 39
    • 48

    Decreasing Clouds

    • 37
    • 48

    Mostly Cloudy

    • 34
    • 43

    Rain/Snow

    • 30
    • 35

    Snow

    • 29
    • 33

    Snow

    • 26
    • 33

    Snow

Today 21 Dec Eastern Sierra Slopes of Inyo County

Mostly sunny. Windy. A trace to no accumulation. Highs 43 to 53. Southwest Winds 20 to 30 Mph with Gusts to around 60 Mph.

Tonight 21 Dec Eastern Sierra Slopes of Inyo County

Partly cloudy. Snow accumulation generally 1 to 3 Inches. Near steady temperature in the upper 30s. Southwest Winds 20 to 30 Mph with Gusts to around 50 Mph.

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Whitney Portal Temperature Statistics

December Temperature

Bishop, Bishop Airport (54.1 miles)

  • Lowest 4 December, 2025

    21.9 °F

  • Average December

    50.2 °F

  • Highest 17 December, 2025

    77 °F

Climate (2020–Present)

Bishop, Bishop Airport (54.1 miles)

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  • Average Low 2020–2025

    41.5 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    76.5 °F
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