Ruby Lake Weather Forecast

    • 27
    • 34

    Becoming Sunny

    • 31
    • 43

    Mostly Sunny

    • 31
    • 44

    Mostly Sunny

    • 30
    • 47

    Partly Sunny

    • 32
    • 46

    Mostly Sunny

    • 34
    • 49

    Partly Sunny

Today 4 Dec Upper San Joaquin River

Sunny. Highs 30 to 44. North Winds up to 10 Mph.

Tonight 4 Dec Upper San Joaquin River

Mostly clear. Near steady temperature around 30. North Winds 5 to 10 Mph with Gusts to around 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ruby Lake Temperature Statistics

December Temperature

Mammoth Yosemite Airport (18.6 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    29.6 °F

  • Highest 1 December, 2025

    46.4 °F

Climate (2020–Present)

Mammoth Yosemite Airport (18.6 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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