Big Margaret Lake Weather Forecast

    • 40
    • 58

    Slight Chance Thunderstorms

    • 40
    • 59

    Slight Chance Thunderstorms

    • 39
    • 58

    Slight Chance Thunderstorms

    • 39
    • 58

    Sunny

    • 43
    • 60

    Sunny

    • 45
    • 64

    Sunny

Today 23 Jul Upper San Joaquin River

Sunny. A 20 percent chance of Thunderstorms in the late morning and afternoon. Highs 55 to 69. South Winds up to 5 Mph shifting to the southwest with Gusts to around 25 Mph in the afternoon.

Tonight 23 Jul Upper San Joaquin River

Mostly clear. A 20 percent chance of Thunderstorms in the evening. Lows 38 to 48. Southwest Winds up to 10 Mph shifting to the east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Margaret Lake Temperature Statistics

July Temperature

Mammoth Yosemite Airport (15.5 miles)

  • Lowest 9 July, 2025

    35.6 °F

  • Average July

    67.3 °F

  • Highest 13 July, 2025

    89.6 °F

Climate (2020–Present)

Mammoth Yosemite Airport (15.5 miles)

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  • Average Low 2020–2025

    29.8 °F

  • Average 2020–2025

    46.4 °F

  • Average High 2020–2025

    61.2 °F
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