Grass Valley Weather Forecast

    • 52
    • 76

    Sunny

    • 55
    • 78

    Sunny

    • 58
    • 82

    Sunny

    • 60
    • 86

    Sunny

    • 60
    • 89

    Sunny

    • 61
    • 90

    Sunny

    • 61
    • 89

    Sunny

Today 19 Jun Northern Motherlode Between 1000-3000 ft

Partly cloudy with a slight chance of Showers and Thunderstorms early in the Morning, then partly cloudy with a slight chance of rain late in the morning. Sunny in the afternoon. Highs 75 to 81. Southwest Winds up to 10 Mph.

Tonight 19 Jun Northern Motherlode Between 1000-3000 ft

Clear. Lows 51 to 57. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Valley Temperature Statistics

June Temperature

Nevada County Air Park (3.1 miles)

  • Lowest 9 June, 2026

    51.8 °F

  • Average June

    73.6 °F

  • Highest 12 June, 2026

    89.6 °F

Climate (2021–2026)

Nevada County Air Park (3.1 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    68.8 °F
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