Donnelly Peak Weather Forecast

    • 48
    • 65

    Partly Sunny

    • 51
    • 66

    Mostly Sunny

    • 50
    • 67

    Partly Sunny

    • 39
    • 60

    Partly Sunny

    • 43
    • 55

    Partly Sunny

    • 39
    • 56

    Partly Sunny

Today 22 Sep Humboldt County

Sunny. Highs 64 to 74.

Tonight 22 Sep Humboldt County

Partly cloudy. Lows 47 to 53. North Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Donnelly Peak Temperature Statistics

September Temperature

Alturas (72.1 miles)

  • Lowest 14 September, 2026

    28.7 °F

  • Average September

    59.4 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Alturas (72.1 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    64.7 °F
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