Whitney Portal Weather Forecast

    • 48
    • 66

    Mostly Sunny

    • 48
    • 65

    Partly Sunny

    • 49
    • 67

    Mostly Sunny

    • 48
    • 67

    Mostly Sunny

    • 45
    • 66

    Mostly Sunny

    • 37
    • 63

    Mostly Sunny

Today 21 May Eastern Sierra Slopes of Inyo County

Sunny. Highs 60 to 70. Northeast Winds 5 to 10 Mph shifting to the north in the afternoon.

Tonight 21 May Eastern Sierra Slopes of Inyo County

Partly cloudy. Lows 42 to 52. West Winds 5 to 10 Mph with Gusts to around 25 Mph.

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Whitney Portal Temperature Statistics

May Temperature

Bishop, Bishop Airport (54.1 miles)

  • Lowest 19 May, 2026

    33.1 °F

  • Average May

    64.9 °F

  • Highest 11 May, 2026

    95.6 °F

Climate (2021–Present)

Bishop, Bishop Airport (54.1 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    76.7 °F
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