Grass Valley Lake Weather Forecast

    • 38
    • 54

    Breezy

    • 40
    • 56

    Mostly Sunny

    • 42
    • 60

    Mostly Sunny

    • 46
    • 64

    Mostly Sunny

    • 47
    • 66

    Mostly Sunny

    • 49
    • 65

    Partly Sunny

Today 20 Feb San Bernardino County Mountains

Partly cloudy this morning. Becoming mostly sunny. Highs 49 to 58 above 6000 feet to 56 to 66 below 6000 feet. Areas of Winds north 10 to 20 Mph with Gusts to 35 Mph.

Tonight 20 Feb San Bernardino County Mountains

Mostly clear. Colder. Lows 26 to 36 above 6000 feet to 32 to 42 below 6000 feet. Areas of Winds northeast 10 to 15 Mph with Gusts to 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Valley Lake Temperature Statistics

February Temperature

San Bernardino Intl. Airport (11.8 miles)

  • Lowest 10 February, 2025

    41 °F

  • Average February

    53.5 °F

  • Highest 3 February, 2025

    80.6 °F

Climate (2020–Present)

San Bernardino Intl. Airport (11.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    54.4 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    80.7 °F
Get WillyWeather+ to remove ads