Grass Lake Weather Forecast

    • 41
    • 60

    Partly Sunny

    • 32
    • 48

    Rain Showers Likely

    • 33
    • 55

    Mostly Sunny

    • 39
    • 63

    Sunny

    • 41
    • 65

    Sunny

    • 42
    • 68

    Sunny

Today 16 May Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy in the morning then clearing. Highs 66 to 76. Light Winds becoming west around 10 Mph in the afternoon.

Tonight 16 May Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy. Slight chance of Showers and Thunderstorms in the Evening, then slight chance of Showers after midnight. Lows 39 to 49. West Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

May Temperature

Emigrant Gap, Blue Canyon Nyack Airport (31.1 miles)

  • Lowest 12 May, 2025

    33.7 °F

  • Average May

    54.3 °F

  • Highest 10 May, 2025

    75.7 °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

    53.4 °F

  • Average High 2020–2025

    60.5 °F
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