Mammoth Lake Weather Forecast

    • 58
    • 77

    Increasing Clouds

    • 45
    • 78

    Rain Showers

    • 43
    • 60

    Chance Rain Showers

    • 41
    • 62

    Chance Rain Showers

    • 39
    • 55

    Chance Rain Showers

    • 39
    • 58

    Slight Chance Rain Showers

Today 18 Oct Westmoreland

Partly sunny this Morning, then clearing. Warm with Highs in the upper 70s. South Winds 5 to 10 Mph.

Tonight 18 Oct Westmoreland

Mainly clear. Mild. Lows in the upper 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mammoth Lake Temperature Statistics

October Temperature

Latrobe / Westmorland (5.6 miles)

  • Lowest 9 October, 2025

    35.6 °F

  • Average October

    56.1 °F

  • Highest 6 October, 2025

    82.4 °F

Climate (2020–Present)

Latrobe / Westmorland (5.6 miles)

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  • Average Low 2020–2025

    43.8 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    62.8 °F
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