Fish Lake Weather Forecast

    • 48
    • 64

    Chance Rain Showers

    • 48
    • 66

    Mostly Sunny

    • 52
    • 75

    Sunny

    • 54
    • 79

    Sunny

    • 57
    • 83

    Mostly Sunny

    • 56
    • 81

    Mostly Sunny

Today 12 Sep Northeastern Interior Humboldt

Mostly sunny. Highs 61 to 76.

Tonight 12 Sep Northeastern Interior Humboldt

Mostly cloudy. Chance of rain Showers in the Evening, then slight chance of rain Showers overnight. Lows 41 to 51.

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Fish Lake Temperature Statistics

September Temperature

Arcata / Eureka, Arcata Airport (29.2 miles)

  • Lowest 5 September, 2026

    46.7 °F

  • Average September

    59 °F

  • Highest 9 September, 2026

    75 °F

Climate (2021–2026)

Arcata / Eureka, Arcata Airport (29.2 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    59.8 °F
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