Sheldon National Wildlife Refuge Weather Forecast

    • 53
    • 77

    Increasing Clouds

    • 50
    • 72

    Mostly Cloudy

    • 45
    • 69

    Partly Sunny

    • 42
    • 69

    Mostly Sunny

    • 46
    • 72

    Mostly Sunny

    • 48
    • 75

    Rain Showers

Today 18 Sep Humboldt County

Partly sunny. Highs 77 to 85. East Winds up to 10 Mph.

Tonight 18 Sep Humboldt County

Cloudy. Lows 55 to 61. Northeast Winds up to 10 Mph shifting to the southwest after midnight.

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Sheldon National Wildlife Refuge Temperature Statistics

September Temperature

Lake County Airport (64 miles)

  • Lowest 15 September, 2025

    37.9 °F

  • Average September

    62.5 °F

  • Highest 2 September, 2025

    91.9 °F

Climate (2020–Present)

Lake County Airport (64 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    61.2 °F
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