Gem Lake Weather Forecast

    • 39
    • 59

    Increasing Clouds

    • 35
    • 54

    Partly Sunny

    • 35
    • 50

    Chance Snow Showers

    • 40
    • 59

    Mostly Sunny

    • 42
    • 65

    Sunny

    • 40
    • 64

    Mostly Sunny

Today 26 Sep Mono

Partly cloudy. Highs 67 to 77. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 26 Sep Mono

Mostly cloudy. Patchy smoke in the evening. Lows 33 to 43. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gem Lake Temperature Statistics

September Temperature

Mammoth Yosemite Airport (18.6 miles)

  • Lowest 18 September, 2026

    28.4 °F

  • Average September

    58.1 °F

  • Highest 9 September, 2026

    84.2 °F

Climate (2021–2026)

Mammoth Yosemite Airport (18.6 miles)

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  • Average Low 2021–2026

    29.4 °F

  • Average 2021–2026

    45.7 °F

  • Average High 2021–2026

    60.5 °F
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