Hopper Mountain National Wildlife Refuge Weather Forecast

    • 67
    • 88

    Sunny

    • 62
    • 84

    Sunny

    • 57
    • 77

    Sunny

    • 55
    • 75

    Sunny

    • 51
    • 73

    Mostly Sunny

    • 50
    • 71

    Mostly Sunny

Today 10 Sep Southern Ventura County Mountains

Sunny. Highs from 92 to 102 at low Elevations to the 80s at high Elevations.

Tonight 10 Sep Southern Ventura County Mountains

Mostly clear. Lows in the mid 60s to mid 70s except the lower to mid 50s Colder Valleys and Slopes. Northwest Winds around 15 Mph.

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Hopper Mountain National Wildlife Refuge Temperature Statistics

September Temperature

Sandberg (20.5 miles)

  • Lowest 2 September, 2026

    49.6 °F

  • Average September

    65.5 °F

  • Highest 8 September, 2026

    82.9 °F

Climate (2021–2026)

Sandberg (20.5 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    59.2 °F

  • Average High 2021–2026

    67.9 °F
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