Portola Weather Forecast

    • 41
    • 73

    Increasing Clouds

    • 39
    • 68

    Slight Chance Rain Showers

    • 37
    • 64

    Chance Rain Showers

    • 39
    • 68

    Chance Rain Showers

    • 41
    • 74

    Mostly Sunny

    • 41
    • 77

    Mostly Sunny

Today 8 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 71 to 81. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 8 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy with a slight chance of Showers. Lows 37 to 47. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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Portola Temperature Statistics

September Temperature

Reno/Stead (32.9 miles)

  • Lowest 4 September, 2025

    51.8 °F

  • Average September

    70.4 °F

  • Highest 1 September, 2025

    87.8 °F

Climate (2020–Present)

Reno/Stead (32.9 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    64.3 °F
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