Blue Lake Weather Forecast

    • 54
    • 79

    Increasing Clouds

    • 50
    • 69

    Mostly Cloudy

    • 48
    • 69

    Partly Sunny

    • 48
    • 72

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 50
    • 74

    Chance Rain Showers

Today 18 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy. Highs 79 to 89. Light Winds becoming southeast around 10 Mph in the afternoon.

Tonight 18 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Cloudy. Slight chance of Showers after midnight. Lows 47 to 57. Southwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Blue Lake Temperature Statistics

September Temperature

Alturas (27.3 miles)

  • Lowest 15 September, 2025

    35.1 °F

  • Average September

    65.9 °F

  • Highest 1 September, 2025

    91 °F

Climate (2020–Present)

Alturas (27.3 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    64.4 °F
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