Grassy Lake Weather Forecast

    • 31
    • 51

    Becoming Sunny

    • 31
    • 52

    Mostly Sunny

    • 29
    • 51

    Mostly Sunny

    • 29
    • 52

    Mostly Sunny

    • 30
    • 51

    Mostly Sunny

    • 32
    • 55

    Mostly Sunny

    • 33
    • 57

    Mostly Sunny

Today 17 Jan Northeastern Mendocino Interior

Sunny. Patchy valley fog in the morning. Highs 46 to 61.

Tonight 17 Jan Northeastern Mendocino Interior

Clear early in the evening then becoming partly cloudy. Areas of valley fog overnight. Lows 30 to 40.

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Grassy Lake Temperature Statistics

January Temperature

Ukiah Municipal Airport (37.9 miles)

  • Lowest 12 January, 2025

    32 °F

  • Average January

    49.9 °F

  • Highest 9 January, 2025

    71.7 °F

Climate (2020–Present)

Ukiah Municipal Airport (37.9 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    60.6 °F

  • Average High 2020–2025

    76.2 °F
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