Round Lake Weather Forecast

    • 32
    • 52

    Sunny

    • 37
    • 60

    Sunny

    • 40
    • 63

    Mostly Sunny

    • 42
    • 69

    Sunny

    • 42
    • 66

    Mostly Sunny

    • 42
    • 66

    Sunny

    • 42
    • 67

    Mostly Sunny

Today 18 May Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 57 to 67. East Winds 10 to 15 Mph.

Tonight 18 May Lassen-Eastern Plumas-Eastern Sierra Counties

Clear. Lows 30 to 40. Northeast Winds around 10 Mph in the evening becoming light.

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Round Lake Temperature Statistics

May Temperature

Emigrant Gap, Blue Canyon Nyack Airport (28 miles)

  • Lowest 4 May, 2026

    37.7 °F

  • Average May

    57.6 °F

  • Highest 11 May, 2026

    77.6 °F

Climate (2021–Present)

Emigrant Gap, Blue Canyon Nyack Airport (28 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    60.7 °F
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