Boulder Reservoir Weather Forecast

    • 32
    • 49

    Partly Sunny

    • 28
    • 49

    Partly Sunny

    • 19
    • 41

    Mostly Sunny

    • 21
    • 37

    Sunny

    • 26
    • 42

    Partly Sunny

    • 26
    • 46

    Partly Sunny

    • 29
    • 48

    Partly Sunny

Today 21 Jan Northern Washoe County

Mostly cloudy. Highs 43 to 53. Light Winds.

Tonight 21 Jan Northern Washoe County

Mostly cloudy. Lows 24 to 34. Light Winds.

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Boulder Reservoir Temperature Statistics

January Temperature

Alturas (42.9 miles)

  • Lowest 9 January, 2026

    9 °F

  • Average January

    37.8 °F

  • Highest 14 January, 2026

    59 °F

Climate (2021–Present)

Alturas (42.9 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    64.5 °F
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