Grass Valley Weather Forecast

    • 56
    • 74

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 55
    • 70

    Partly Sunny

    • 55
    • 70

    Partly Sunny

    • 58
    • 70

    Mostly Cloudy

Today 19 Oct San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 70s. Northwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 19 Oct San Francisco Bay Shoreline

Mostly clear. Lows in the mid 50s. West Winds 10 to 20 Mph. Becoming 5 to 10 Mph after midnight.

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Grass Valley Temperature Statistics

October Temperature

Oakland, Metro Oakland International Airport (5 miles)

  • Lowest 14 October, 2025

    46.9 °F

  • Average October

    61.9 °F

  • Highest 6 October, 2025

    82.9 °F

Climate (2020–Present)

Oakland, Metro Oakland International Airport (5 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    58.6 °F

  • Average High 2020–2025

    67.1 °F
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