Crater Lake Weather Forecast

    • 41
    • 56

    Partly Sunny

    • 44
    • 66

    Mostly Sunny

    • 42
    • 70

    Mostly Sunny

    • 43
    • 67

    Sunny

    • 45
    • 68

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

Today 15 Mar Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 64 to 69. Light Winds becoming east around 10 Mph in the afternoon.

Tonight 15 Mar Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy. Lows 35 to 45. Light Winds.

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Crater Lake Temperature Statistics

March Temperature

Alturas (64 miles)

  • Lowest 11 March, 2026

    21.9 °F

  • Average March

    44 °F

  • Highest 12 March, 2026

    68 °F

Climate (2021–Present)

Alturas (64 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    64.8 °F
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