Sheldon National Wildlife Refuge Weather Forecast

    • 45
    • 73

    Mostly Sunny

    • 48
    • 75

    Increasing Clouds

    • 47
    • 77

    Partly Sunny

    • 34
    • 65

    Breezy

    • 39
    • 63

    Mostly Cloudy

    • 35
    • 63

    Mostly Cloudy

    • 36
    • 62

    Mostly 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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Sheldon National Wildlife Refuge Temperature Statistics

September Temperature

Lake County Airport (64 miles)

  • Lowest 7 September, 2026

    28 °F

  • Average September

    55.7 °F

  • Highest 9 September, 2026

    86 °F

Climate (2021–2026)

Lake County Airport (64 miles)

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  • Average Low 2021–2026

    34.1 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    61.4 °F
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