Union Valley Reservoir Weather Forecast

    • 48
    • 73

    Becoming Sunny

    • 48
    • 73

    Chance Rain Showers

    • 47
    • 72

    Chance Rain Showers

    • 48
    • 71

    Chance Rain Showers

    • 51
    • 75

    Sunny

    • 52
    • 79

    Sunny

Today 23 Jul West Slope Northern Sierra Nevada

Mostly sunny. At higher Elevations, a slight chance of Showers and Thunderstorms late in the afternoon. Highs 62 to 77 higher Elevations. 72 to 82 lower Elevations. Light Winds becoming west up to 10 Mph in the afternoon.

Tonight 23 Jul West Slope Northern Sierra Nevada

Mostly clear. At higher Elevations, a slight chance of rain Showers in the evening. Lows 40 to 55 higher Elevations 51 to 63 lower Elevations. Prevailing west Winds up to 10 Mph in the evening becoming light.

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Union Valley Reservoir Temperature Statistics

July Temperature

Placerville Airport (21.1 miles)

  • Lowest 4 July, 2025

    57.2 °F

  • Average July

    78 °F

  • Highest 11 July, 2025

    95 °F

Climate (2020–Present)

Placerville Airport (21.1 miles)

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  • Average Low 2020–2025

    52.6 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    69.4 °F
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