Shumway Weather Forecast

    • 45
    • 73

    Decreasing Clouds

    • 46
    • 76

    Mostly Sunny

    • 48
    • 77

    Mostly Sunny

    • 45
    • 80

    Mostly Sunny

    • 46
    • 80

    Mostly Sunny

    • 39
    • 77

    Mostly Sunny

Today 20 May Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy. Highs 71 to 81. Light Winds becoming west around 10 Mph in the afternoon.

Tonight 20 May Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy in the evening then becoming clear. Lows 39 to 49. West Winds around 10 Mph in the evening becoming light.

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Shumway Temperature Statistics

May Temperature

Alturas (54.1 miles)

  • Lowest 14 May, 2026

    28.7 °F

  • Average May

    56.4 °F

  • Highest 12 May, 2026

    88.6 °F

Climate (2021–Present)

Alturas (54.1 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    64.9 °F
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