Arnold Weather Forecast

    • 32
    • 49

    Rain/Snow Likely

    • 39
    • 60

    Mostly Sunny

    • 42
    • 60

    Mostly Cloudy

    • 39
    • 52

    Chance Rain

    • 38
    • 51

    Chance Rain

    • 40
    • 55

    Slight Chance Rain

Today 22 Apr West Slope Northern Sierra Nevada

Mostly cloudy with a chance of rain and heavy snow. Lows 27 to 42. Highs 41 to 56.

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Arnold Temperature Statistics

April Temperature

COLUMBIA (15.5 miles)

  • Lowest 3 April, 2026

    37.4 °F

  • Average April

    56.4 °F

  • Highest 5 April, 2026

    78.8 °F

Climate (2021–Present)

COLUMBIA (15.5 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    60 °F

  • Average High 2021–2026

    73.8 °F
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