Merrimac Weather Forecast

    • 45
    • 53

    Sunny

    • 42
    • 54

    Mostly Sunny

    • 44
    • 53

    Mostly Sunny

    • 45
    • 53

    Partly Sunny

    • 42
    • 52

    Mostly Cloudy

    • 36
    • 48

    Mostly Sunny

Today 3 Dec Western Plumas County/Lassen Park

Sunny. Highs 44 to 59. Prevailing northeast Winds up to 10 Mph.

Tonight 3 Dec Western Plumas County/Lassen Park

Clear. Lows 29 to 44. Prevailing northeast Winds up to 10 Mph.

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Merrimac Temperature Statistics

December Temperature

Oroville Municipal Airport (24.9 miles)

  • Lowest 1 December, 2024

    37.9 °F

  • Average December

    45.2 °F

  • Highest 1 December, 2024

    55 °F

Climate (2019–Present)

Oroville Municipal Airport (24.9 miles)

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  • Average Low 2019–2024

    53.3 °F

  • Average 2019–2024

    65.1 °F

  • Average High 2019–2024

    77.2 °F
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