Grass Valley Lake Weather Forecast

    • 58
    • 77

    Sunny

    • 58
    • 79

    Sunny

    • 64
    • 84

    Sunny

    • 59
    • 85

    Sunny

    • 54
    • 76

    Sunny

    • 54
    • 73

    Sunny

    • 55
    • 77

    Sunny

Today 12 Jun San Bernardino County Mountains

Sunny. Highs 75 to 85 above 6000 feet to 81 to 91 below 6000 feet. Areas of Winds south 10 to 20 Mph. Gusts to 30 Mph this afternoon.

Tonight 12 Jun San Bernardino County Mountains

Clear, cooler. Lows 44 to 54 above 6000 feet to 52 to 62 below 6000 feet. Areas of Winds south 10 to 20 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Valley Lake Temperature Statistics

June Temperature

San Bernardino Intl. Airport (11.8 miles)

  • Lowest 3 June, 2024

    57.2 °F

  • Average June

    66.8 °F

  • Highest 5 June, 2024

    93.2 °F

Climate (2019–Present)

San Bernardino Intl. Airport (11.8 miles)

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  • Average Low 2019–2024

    54.3 °F

  • Average 2019–2024

    63.4 °F

  • Average High 2019–2024

    80.7 °F
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