Heilmann Regional Park Weather Forecast

    • 45
    • 69

    Increasing Clouds

    • 46
    • 67

    Partly Sunny

    • 40
    • 67

    Partly Sunny

    • 44
    • 66

    Partly Sunny

    • 49
    • 67

    Mostly Cloudy

    • 49
    • 63

    Chance Rain Showers

Today 16 Dec Southern Salinas Valley

Sunny. Highs around 70.

Tonight 16 Dec Southern Salinas Valley

Clear in the evening then partly cloudy. Lows in the 40s to around 50.

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Heilmann Regional Park Temperature Statistics

December Temperature

Paso Robles Municipal Airport (13.7 miles)

  • Lowest 5 December, 2025

    30 °F

  • Average December

    45.2 °F

  • Highest 12 December, 2025

    73 °F

Climate (2020–Present)

Paso Robles Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    45.1 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    77.7 °F
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