Beck Lakes Weather Forecast

    • 29
    • 37

    Mostly Sunny

    • 29
    • 39

    Mostly Sunny

    • 28
    • 38

    Mostly Sunny

    • 31
    • 39

    Mostly Sunny

    • 33
    • 44

    Partly Sunny

    • 33
    • 45

    Mostly Sunny

Today 5 Dec Upper San Joaquin River

Not as cool. Sunny. Highs 39 to 53. North Winds up to 10 Mph. Gusts up to 25 Mph in the morning.

Tonight 5 Dec Upper San Joaquin River

Clear. Near steady temperature in the mid 30s. Northwest Winds up to 10 Mph with Gusts to around 25 Mph.

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Beck Lakes Temperature Statistics

December Temperature

Mammoth Yosemite Airport (16.8 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    32.9 °F

  • Highest 2 December, 2025

    59 °F

Climate (2020–Present)

Mammoth Yosemite Airport (16.8 miles)

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  • Average Low 2020–2025

    29.7 °F

  • Average 2020–2025

    46 °F

  • Average High 2020–2025

    60.8 °F
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