Cuyamaca Rancho State Park Weather Forecast

    • 45
    • 62

    Mostly Cloudy

    • 43
    • 56

    Chance Rain Showers

    • 42
    • 49

    Chance Rain Showers

    • 36
    • 50

    Slight Chance Rain Showers

    • 37
    • 49

    Partly Sunny

    • 39
    • 52

    Partly Sunny

    • 43
    • 56

    Partly Sunny

Today 21 Jan San Diego County Mountains

Mostly cloudy. Highs 60 to 69. Light Winds.

Tonight 21 Jan San Diego County Mountains

Mostly cloudy. Lows 42 to 49. Areas of Winds south to 10 Mph becoming west 10 Mph overnight.

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Cuyamaca Rancho State Park Temperature Statistics

January Temperature

Ramona, Ramona Airport (21.1 miles)

  • Lowest 8 January, 2026

    37 °F

  • Average January

    61.8 °F

  • Highest 17 January, 2026

    81 °F

Climate (2021–Present)

Ramona, Ramona Airport (21.1 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    64 °F

  • Average High 2021–2026

    76.5 °F
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