Grass Valley Weather Forecast

    • 53
    • 66

    Decreasing Clouds

    • 55
    • 77

    Mostly Sunny

    • 57
    • 89

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 53
    • 74

    Partly Sunny

    • 52
    • 73

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

Today 28 May San Francisco Bay Shoreline

Partly cloudy late in the morning then becoming sunny. Highs in the mid to upper 60s. West Winds 10 to 20 Mph.

Tonight 28 May San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s. West Winds 10 to 20 Mph.

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Grass Valley Temperature Statistics

May Temperature

Oakland, Metro Oakland International Airport (5 miles)

  • Lowest 4 May, 2025

    46.7 °F

  • Average May

    60.2 °F

  • Highest 5 May, 2025

    85.6 °F

Climate (2020–Present)

Oakland, Metro Oakland International Airport (5 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    58.8 °F

  • Average High 2020–2025

    67.4 °F
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