Boulder Reservoir Weather Forecast

    • 50
    • 81

    Partly Sunny

    • 37
    • 63

    Chance Rain Showers

    • 42
    • 70

    Chance Rain Showers

    • 37
    • 70

    Mostly Sunny

    • 32
    • 60

    Partly Sunny

    • 35
    • 62

    Partly Sunny

Today 12 May Northern Washoe County

Partly cloudy in the morning then becoming sunny. Highs 85 to 95. South Winds around 10 Mph increasing to southwest 15 to 25 Mph with Gusts up to 45 Mph in the afternoon.

Tonight 12 May Northern Washoe County

Partly cloudy in the evening then becoming mostly cloudy. Lows 48 to 58. Southwest Winds 20 to 30 Mph with Gusts up to 45 Mph decreasing to 10 to 15 Mph with Gusts up to 30 Mph after midnight.

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Boulder Reservoir Temperature Statistics

May Temperature

Alturas (42.9 miles)

  • Lowest 1 May, 2026

    30.7 °F

  • Average May

    58.8 °F

  • Highest 10 May, 2026

    86 °F

Climate (2021–Present)

Alturas (42.9 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    65 °F
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