Palomar Mountain State Park Weather Forecast

    • 43
    • 57

    Decreasing Clouds

    • 44
    • 55

    Mostly Sunny

    • 58
    • 70

    Sunny

    • 63
    • 81

    Sunny

    • 61
    • 83

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 60
    • 80

    Mostly Sunny

Today 9 Mar San Diego County Mountains

Partly cloudy with a slight chance of Showers. Highs 56 to 65. Areas of Winds east 10 to 15 Mph with Gusts to 25 Mph. Chance of measurable precipitation 20 percent.

Tonight 9 Mar San Diego County Mountains

Partly cloudy. A slight chance of Showers this evening. Patchy fog overnight. Colder. Lows 38 to 46. Areas of Winds northwest 10 Mph. Chance of measurable precipitation 20 percent.

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Palomar Mountain State Park Temperature Statistics

March Temperature

Fallbrook Community Airpark (19.9 miles)

  • Lowest 3 March, 2026

    48.2 °F

  • Average March

    60.3 °F

  • Highest 1 March, 2026

    84.2 °F

Climate (2021–Present)

Fallbrook Community Airpark (19.9 miles)

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  • Average Low 2021–2026

    53.6 °F

  • Average 2021–2026

    61.9 °F

  • Average High 2021–2026

    74.3 °F
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