Boulder Reservoir Weather Forecast

    • 55
    • 83

    Decreasing Clouds

    • 55
    • 85

    Mostly Sunny

    • 55
    • 84

    Partly Sunny

    • 50
    • 78

    Chance Rain Showers

    • 48
    • 79

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

Today 25 Aug Northern Washoe County

Partly cloudy. Patchy smoke in the afternoon. Highs 86 to 96. Light Winds becoming southwest 10 to 20 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 25 Aug Northern Washoe County

Partly cloudy. Lows 53 to 63. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boulder Reservoir Temperature Statistics

August Temperature

Alturas (42.9 miles)

  • Lowest 16 August, 2026

    38.6 °F

  • Average August

    69.8 °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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