Grassy Lake Weather Forecast

    • 37
    • 61

    Becoming Sunny

    • 34
    • 49

    Decreasing Clouds

    • 34
    • 50

    Mostly Sunny

    • 32
    • 53

    Partly Sunny

    • 30
    • 49

    Partly Sunny

    • 30
    • 46

    Chance Rain

    • 31
    • 46

    Chance Rain

Today 25 Oct Northeastern Interior Mendocino

Mostly sunny. Patchy valley fog. Highs 49 to 64.

Tonight 25 Oct Northeastern Interior Mendocino

Mostly cloudy early in the evening then clearing. Lows 34 to 44.

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Grassy Lake Temperature Statistics

October Temperature

Ukiah Municipal Airport (37.9 miles)

  • Lowest 13 October, 2026

    38.6 °F

  • Average October

    67.2 °F

  • Highest 5 October, 2026

    102.7 °F

Climate (2021–2026)

Ukiah Municipal Airport (37.9 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    76.2 °F
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