Grass Valley Weather Forecast

    • 54
    • 75

    Becoming Sunny

    • 55
    • 75

    Mostly Sunny

    • 55
    • 77

    Sunny

    • 56
    • 80

    Sunny

    • 59
    • 84

    Sunny

    • 60
    • 86

    Sunny

    • 62
    • 89

    Sunny

Today 4 Jul Motherlode

Sunny. Highs 72 to 84. Prevailing south Winds up to 10 Mph shifting to the southwest in the afternoon.

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Grass Valley Temperature Statistics

July Temperature

Nevada County Air Park (3.1 miles)

  • Lowest 2 July, 2022

    59 °F

  • Average July

    74 °F

  • Highest 1 July, 2022

    86 °F

Climate (2011–Present)

Nevada County Air Park (3.1 miles)

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  • Average Low 2011–Present

    51.3 °F

  • Average 2011–Present

    59.7 °F

  • Average High 2011–Present

    67.8 °F
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