Boulder Reservoir Weather Forecast

    • 49
    • 75

    Mostly Sunny

    • 50
    • 81

    Mostly Sunny

    • 52
    • 83

    Mostly Sunny

    • 51
    • 82

    Partly Sunny

    • 45
    • 72

    Mostly Sunny

    • 43
    • 72

    Mostly Sunny

Today 9 May Northern Washoe County

Sunny. Highs 76 to 86. Northeast Winds 10 to 15 Mph.

Tonight 9 May Northern Washoe County

Clear in the evening then becoming partly cloudy. Lows 46 to 56. East Winds around 10 Mph in the evening becoming light.

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Boulder Reservoir Temperature Statistics

May Temperature

Alturas (42.9 miles)

  • Lowest 1 May, 2026

    30.7 °F

  • Average May

    58 °F

  • Highest 6 May, 2026

    79.6 °F

Climate (2021–Present)

Alturas (42.9 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    64.9 °F
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