Julian County Park Weather Forecast

    • 52
    • 74

    Sunny

    • 50
    • 75

    Sunny

    • 47
    • 74

    Sunny

    • 50
    • 77

    Mostly Sunny

    • 56
    • 84

    Sunny

    • 62
    • 89

    Mostly Sunny

    • 63
    • 91

    Mostly Sunny

Today 18 Jun San Diego County Mountains

Mostly sunny. Highs 74 to 84. Areas of Winds west 15 to 25 Mph. Gusts to 30 Mph. Becoming 40 Mph this afternoon.

Tonight 18 Jun San Diego County Mountains

Mostly clear. Lows 48 to 57. Areas of Winds west 10 to 20 Mph. Gusts to 35 Mph. Becoming 30 Mph overnight.

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Julian County Park Temperature Statistics

June Temperature

Ramona, Ramona Airport (18 miles)

  • Lowest 9 June, 2026

    46 °F

  • Average June

    67.5 °F

  • Highest 12 June, 2026

    93.9 °F

Climate (2021–2026)

Ramona, Ramona Airport (18 miles)

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  • Average Low 2021–2026

    51.6 °F

  • Average 2021–2026

    64.6 °F

  • Average High 2021–2026

    76.9 °F
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