Swartz Canyon County Park Weather Forecast

    • 59
    • 78

    Mostly Sunny

    • 59
    • 76

    Mostly Sunny

    • 60
    • 81

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 57
    • 75

    Partly Sunny

    • 56
    • 74

    Partly Sunny

Today 16 Dec San Diego County Inland Valleys

Mostly sunny. Highs 74 to 78 in the western Valleys to 77 to 82 near the Foothills. Light Winds.

Tonight 16 Dec San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy. Lows 48 to 54 in wind Sheltered Areas to 50 to 59 in warmer Locations. Light Winds.

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Swartz Canyon County Park Temperature Statistics

December Temperature

Ramona, Ramona Airport (7.5 miles)

  • Lowest 1 December, 2025

    44.1 °F

  • Average December

    66.5 °F

  • Highest 10 December, 2025

    87.1 °F

Climate (2020–Present)

Ramona, Ramona Airport (7.5 miles)

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  • Average Low 2020–2025

    51.1 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    76.5 °F
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