Happy Valley Weather Forecast

    • 65
    • 81

    Sunny

    • 67
    • 84

    Sunny

    • 68
    • 85

    Mostly Sunny

    • 65
    • 80

    Chance Rain Showers

    • 63
    • 76

    Chance Rain Showers

    • 60
    • 76

    Chance Rain Showers

Today 15 Sep West Slope Northern Sierra Nevada

Sunny, warmer. Highs 66 to 81 higher Elevations. 78 to 88 lower Elevations. Prevailing east Winds up to 10 Mph shifting to the southwest in the afternoon.

Tonight 15 Sep West Slope Northern Sierra Nevada

Clear. Lows 44 to 59 higher Elevations. 55 to 69 lower Elevations. Light Winds becoming east up to 10 Mph after midnight.

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Happy Valley Temperature Statistics

September Temperature

Placerville Airport (10.6 miles)

  • Lowest 10 September, 2025

    50 °F

  • Average September

    71.9 °F

  • Highest 2 September, 2025

    98.6 °F

Climate (2020–Present)

Placerville Airport (10.6 miles)

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  • Average Low 2020–2025

    52.4 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    69.2 °F
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