Grass Valley Wilderness Area Weather Forecast

    • 67
    • 90

    Sunny

    • 68
    • 92

    Partly Sunny

    • 65
    • 81

    Rain Showers Likely

    • 64
    • 82

    Slight Chance Thunderstorms

    • 64
    • 84

    Mostly Sunny

    • 65
    • 85

    Mostly Sunny

Today 16 Sep Western Mojave Desert

Sunny. Highs 94 to 97. Southwest Winds up to 10 Mph.

Tonight 16 Sep Western Mojave Desert

Mostly clear. Lows 70 to 73. Southwest Winds up to 10 Mph.

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Grass Valley Wilderness Area Temperature Statistics

September Temperature

China Lake, Naval Air Facility (34.8 miles)

  • Lowest 12 September, 2025

    57.9 °F

  • Average September

    82.9 °F

  • Highest 1 September, 2025

    107.1 °F

Climate (2020–Present)

China Lake, Naval Air Facility (34.8 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    68 °F

  • Average High 2020–2025

    82.7 °F
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