Big Margaret Lake Weather Forecast

    • 39
    • 55

    Mostly Sunny

    • 37
    • 56

    Sunny

    • 36
    • 55

    Mostly Sunny

    • 33
    • 48

    Mostly Sunny

    • 34
    • 48

    Mostly Sunny

    • 28
    • 43

    Chance Snow

    • 32
    • 43

    Mostly Sunny

Today 31 Oct Upper San Joaquin River

Sunny. Highs 52 to 66. Northwest Winds up to 5 Mph shifting to the west in the afternoon.

Tonight 31 Oct Upper San Joaquin River

Mostly clear. Lows 35 to 47. Northeast Winds up to 5 Mph shifting to the south after midnight.

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  • Temperature Real-Time

Big Margaret Lake Temperature Statistics

October Temperature

Mammoth Yosemite Airport (15.5 miles)

  • Lowest 12 October, 2025

    19.4 °F

  • Average October

    46.2 °F

  • Highest 19 October, 2025

    71.6 °F

Climate (2020–Present)

Mammoth Yosemite Airport (15.5 miles)

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  • Average Low 2020–2025

    29.6 °F

  • Average 2020–2025

    46 °F

  • Average High 2020–2025

    60.8 °F
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