Palomar Mountain State Park Weather Forecast

    • 70
    • 80

    Mostly Sunny

    • 66
    • 81

    Sunny

    • 59
    • 75

    Mostly Sunny

    • 54
    • 70

    Mostly Sunny

    • 50
    • 70

    Sunny

    • 50
    • 68

    Sunny

    • 52
    • 69

    Sunny

Today 15 Jun San Diego County Mountains

Mostly sunny. Highs 83 to 93. Areas of Winds west 10 to 15 Mph. Gusts to 30 Mph this afternoon.

Tonight 15 Jun San Diego County Mountains

Clear. Lows 60 to 70. Areas of Winds west 10 to 15 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight.

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Palomar Mountain State Park Temperature Statistics

June Temperature

Fallbrook Community Airpark (19.9 miles)

  • Lowest 9 June, 2026

    55.4 °F

  • Average June

    66.1 °F

  • Highest 12 June, 2026

    91.4 °F

Climate (2021–Present)

Fallbrook Community Airpark (19.9 miles)

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  • Average Low 2021–2026

    53.8 °F

  • Average 2021–2026

    62.1 °F

  • Average High 2021–2026

    74.5 °F
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