Grass Lake Weather Forecast

    • 47
    • 70

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 51
    • 79

    Mostly Sunny

    • 52
    • 79

    Partly Sunny

    • 52
    • 79

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

Today 5 Jun Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 77 to 87. Light Winds becoming west around 10 Mph in the afternoon.

Tonight 5 Jun Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy in the evening then clearing. Lows 45 to 55. West Winds around 10 Mph in the evening becoming light.

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Grass Lake Temperature Statistics

June Temperature

Emigrant Gap, Blue Canyon Nyack Airport (31.1 miles)

  • Lowest 2 June, 2025

    60.1 °F

  • Average June

    68.6 °F

  • Highest 2 June, 2025

    75.9 °F

Climate (2020–Present)

Emigrant Gap, Blue Canyon Nyack Airport (31.1 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    60.5 °F
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