Gem Lake Weather Forecast

    • 46
    • 68

    Patchy Smoke

    • 46
    • 68

    Partly Sunny

    • 43
    • 63

    Chance Rain Showers

    • 40
    • 56

    Chance Rain Showers

    • 41
    • 60

    Chance Rain Showers

    • 43
    • 63

    Mostly Sunny

Today 16 Sep Mono

Sunny. Haze in the afternoon. Highs 74 to 84. Light Winds becoming east around 10 Mph in the afternoon.

Tonight 16 Sep Mono

Clear. Lows 39 to 49. Northwest Winds around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gem Lake Temperature Statistics

September Temperature

Mammoth Yosemite Airport (18.6 miles)

  • Lowest 7 September, 2025

    35.6 °F

  • Average September

    57.4 °F

  • Highest 1 September, 2025

    80.6 °F

Climate (2020–Present)

Mammoth Yosemite Airport (18.6 miles)

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  • Average Low 2020–2025

    29.7 °F

  • Average 2020–2025

    46.2 °F

  • Average High 2020–2025

    61 °F
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