Portola Weather Forecast

    • 34
    • 59

    Partly Sunny

    • 42
    • 57

    Rain

    • 34
    • 53

    Rain

    • 34
    • 55

    Chance Rain

    • 37
    • 51

    Rain

    • 35
    • 51

    Rain Likely

    • 32
    • 49

    Rain Likely

Today 15 Dec Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy. Highs 54 to 59. Light Winds.

Tonight 15 Dec Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy in the Evening, then mostly cloudy with a slight chance of rain after midnight. Lows 30 to 40. Light Winds.

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Portola Temperature Statistics

December Temperature

Reno/Stead (32.9 miles)

  • Lowest 4 December, 2025

    17.6 °F

  • Average December

    40.8 °F

  • Highest 9 December, 2025

    64.4 °F

Climate (2020–Present)

Reno/Stead (32.9 miles)

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  • Average Low 2020–2025

    36.9 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    64.3 °F
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