Buckhorn Reservoir Weather Forecast

    • 46
    • 73

    Increasing Clouds

    • 47
    • 75

    Mostly Sunny

    • 45
    • 78

    Mostly Sunny

    • 45
    • 78

    Mostly Sunny

    • 38
    • 74

    Breezy

    • 34
    • 56

    Slight Chance Rain/Snow

Today 21 May Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 74 to 84. Light Winds becoming north around 10 Mph in the afternoon.

Tonight 21 May Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy with a slight chance of Showers in the Evening, then clear after midnight. Lows 42 to 52. Northwest Winds around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Buckhorn Reservoir Temperature Statistics

May Temperature

Alturas (49.7 miles)

  • Lowest 14 May, 2026

    28.7 °F

  • Average May

    56.1 °F

  • Highest 12 May, 2026

    88.6 °F

Climate (2021–Present)

Alturas (49.7 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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