Grass Valley Wilderness Area Weather Forecast

    • 55
    • 76

    Sunny

    • 57
    • 81

    Mostly Sunny

    • 60
    • 86

    Sunny

    • 63
    • 90

    Sunny

    • 62
    • 89

    Sunny

    • 62
    • 88

    Sunny

Today 28 Sep Western Mojave Desert

Sunny. Highs 80 to 83. Southwest Winds 5 to 15 Mph.

Tonight 28 Sep Western Mojave Desert

Mostly clear. Lows around 60. West Winds 5 to 10 Mph with Gusts to around 25 Mph.

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Grass Valley Wilderness Area Temperature Statistics

September Temperature

China Lake, Naval Air Facility (34.8 miles)

  • Lowest 19 September, 2026

    55 °F

  • Average September

    80 °F

  • Highest 10 September, 2026

    106 °F

Climate (2021–2026)

China Lake, Naval Air Facility (34.8 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    67.9 °F

  • Average High 2021–2026

    82.3 °F
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