Union Valley Reservoir Weather Forecast

    • 44
    • 71

    Sunny

    • 41
    • 66

    Rain Showers Likely

    • 38
    • 52

    Rain Showers

    • 38
    • 53

    Chance Rain Showers

    • 38
    • 59

    Partly Sunny

    • 43
    • 67

    Mostly Sunny

Today 28 Sep West Slope Northern Sierra Nevada

Haze in the morning. Sunny. Highs 57 to 72 higher Elevations. 68 to 78 lower Elevations. Prevailing east Winds up to 10 Mph shifting to the west in the afternoon.

Tonight 28 Sep West Slope Northern Sierra Nevada

Clear. Lows 35 to 50 higher Elevations. 44 to 58 lower Elevations. Prevailing west Winds up to 10 Mph shifting to the east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Valley Reservoir Temperature Statistics

September Temperature

Placerville Airport (21.1 miles)

  • Lowest 25 September, 2023

    50 °F

  • Average September

    68.8 °F

  • Highest 15 September, 2023

    87.8 °F

Climate (2010–Present)

Placerville Airport (21.1 miles)

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  • Average Low 2010–Present

    52.8 °F

  • Average 2010–Present

    61 °F

  • Average High 2010–Present

    69.7 °F
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