Boulder Reservoir Weather Forecast

    • 38
    • 54

    Slight Chance Rain Showers

    • 38
    • 61

    Mostly Sunny

    • 43
    • 65

    Mostly Sunny

    • 48
    • 72

    Mostly Sunny

    • 51
    • 77

    Partly Sunny

    • 48
    • 76

    Mostly Sunny

    • 48
    • 76

    Mostly Sunny

Today 29 May Northern Washoe County

Cloudy with a chance of Showers. Highs 56 to 66. West Winds 10 to 15 Mph.

Tonight 29 May Northern Washoe County

Partly cloudy. Chance of Showers in the evening. Lows 37 to 47. Northwest Winds 10 to 15 Mph.

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Boulder Reservoir Temperature Statistics

May Temperature

Alturas (42.9 miles)

  • Lowest 19 May, 2026

    27.6 °F

  • Average May

    56 °F

  • Highest 12 May, 2026

    88.6 °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

    65 °F
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