Whitney Portal Weather Forecast

    • 21
    • 30

    Mostly Sunny

    • 23
    • 33

    Mostly Sunny

    • 27
    • 36

    Mostly Sunny

    • 31
    • 43

    Mostly Sunny

    • 34
    • 43

    Chance Rain/Snow

    • 33
    • 39

    Rain/Snow Likely

Today 27 Dec Eastern Sierra Slopes of Inyo County

Sunny. Highs 25 to 35. Northwest Winds up to 10 Mph.

Tonight 27 Dec Eastern Sierra Slopes of Inyo County

Mostly clear. Near steady temperature in the lower 20s. West Winds 10 to 15 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

    51.2 °F

  • Highest 17 December, 2025

    77 °F

Climate (2020–Present)

Bishop, Bishop Airport (54.1 miles)

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  • Average Low 2020–2025

    41.6 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    76.5 °F
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