Grassy Lake Weather Forecast

    • 44
    • 58

    Becoming Sunny

    • 44
    • 59

    Mostly Sunny

    • 44
    • 57

    Mostly Sunny

    • 44
    • 58

    Mostly Sunny

    • 43
    • 54

    Partly Sunny

    • 42
    • 48

    Chance Rain Showers

Today 30 Oct Western Plumas County/Lassen Park

Mostly sunny in the morning then becoming mostly cloudy. Highs 58 to 73. Prevailing east Winds up to 10 Mph in the morning becoming light.

Tonight 30 Oct Western Plumas County/Lassen Park

Mostly cloudy in the evening then clearing. Lows 38 to 53. Light Winds.

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Grassy Lake Temperature Statistics

October Temperature

Chico Municipal Airport (29.2 miles)

  • Lowest 12 October, 2025

    44.6 °F

  • Average October

    58.8 °F

  • Highest 7 October, 2025

    87.8 °F

Climate (2020–Present)

Chico Municipal Airport (29.2 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    61.1 °F

  • Average High 2020–2025

    75.2 °F
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