Belfast Weather Forecast

    • 40
    • 75

    Mostly Sunny

    • 45
    • 81

    Partly Sunny

    • 48
    • 85

    Mostly Sunny

    • 47
    • 86

    Mostly Sunny

    • 45
    • 87

    Mostly Sunny

    • 46
    • 88

    Mostly Sunny

Today 19 May Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 64 to 74. Light Winds becoming east around 10 Mph in the afternoon.

Tonight 19 May Lassen-Eastern Plumas-Eastern Sierra Counties

Clear. Lows 34 to 44. North Winds around 10 Mph in the evening becoming light.

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Belfast Temperature Statistics

May Temperature

Reno/Stead (61.5 miles)

  • Lowest 1 May, 2026

    35.6 °F

  • Average May

    61.4 °F

  • Highest 10 May, 2026

    86 °F

Climate (2021–Present)

Reno/Stead (61.5 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    64.6 °F
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