Arnold Weather Forecast

    • 49
    • 73

    Decreasing Clouds

    • 50
    • 74

    Mostly Sunny

    • 53
    • 83

    Sunny

    • 54
    • 86

    Mostly Sunny

    • 54
    • 86

    Sunny

    • 53
    • 86

    Sunny

Today 19 Jun Northwestern Interior Mendocino

Mostly cloudy in the morning then clearing. Patchy valley fog in the morning. Isolated rain Showers in the morning. Isolated Thunderstorms through the day. Highs 71 to 86.

Tonight 19 Jun Northwestern Interior Mendocino

Mostly cloudy. Patchy valley fog overnight. Lows 46 to 56.

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Arnold Temperature Statistics

June Temperature

Ukiah Municipal Airport (28.6 miles)

  • Lowest 7 June, 2026

    47.6 °F

  • Average June

    72.5 °F

  • Highest 11 June, 2026

    103.6 °F

Climate (2021–2026)

Ukiah Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    76.3 °F
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