Grass Valley Weather Forecast

    • 70
    • 97

    Hot

    • 69
    • 97

    Hot

    • 65
    • 94

    Mostly Sunny

    • 63
    • 91

    Mostly Sunny

    • 64
    • 91

    Mostly Sunny

    • 62
    • 88

    Partly Sunny

Today 8 Aug Northern Motherlode Between 1000-3000 ft

Mostly sunny. Highs 96 to 102. Light Winds.

Tonight 8 Aug Northern Motherlode Between 1000-3000 ft

Clear. Lows 69 to 77. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Valley Temperature Statistics

August Temperature

Nevada County Air Park (3.1 miles)

  • Lowest 1 August, 2026

    71.6 °F

  • Average August

    83.5 °F

  • Highest 1 August, 2026

    93.2 °F

Climate (2021–2026)

Nevada County Air Park (3.1 miles)

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  • Average Low 2021–2026

    52.2 °F

  • Average 2021–2026

    60.2 °F

  • Average High 2021–2026

    68.5 °F
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