Boulder Reservoir Weather Forecast

    • 56
    • 89

    Mostly Sunny

    • 58
    • 88

    Increasing Clouds

    • 56
    • 87

    Partly Sunny

    • 50
    • 83

    Breezy

    • 52
    • 83

    Partly Sunny

    • 53
    • 83

    Partly Sunny

    • 52
    • 83

    Partly Sunny

Today 19 Aug Northern Washoe County

Partly cloudy in the morning then clearing. Highs 90 to 100. Light Winds becoming south around 10 Mph in the afternoon.

Tonight 19 Aug Northern Washoe County

Clear. Lows 54 to 64. West Winds 10 to 15 Mph.

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Boulder Reservoir Temperature Statistics

August Temperature

Alturas (42.9 miles)

  • Lowest 16 August, 2026

    38.6 °F

  • Average August

    70 °F

  • Highest 7 August, 2026

    101.6 °F

Climate (2021–2026)

Alturas (42.9 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    49.3 °F

  • Average High 2021–2026

    64.8 °F
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