Julian County Park Weather Forecast

    • 62
    • 81

    Slight Chance Thunderstorms

    • 66
    • 86

    Sunny

    • 67
    • 88

    Sunny

    • 68
    • 89

    Slight Chance Thunderstorms

    • 68
    • 88

    Slight Chance Thunderstorms

    • 67
    • 87

    Slight Chance Thunderstorms

Today 29 Aug San Diego County Mountains

Mostly sunny in the Morning, then partly cloudy with a slight chance of Showers and Thunderstorms in the afternoon. Warmer. Highs 80 to 88. Light Winds becoming west 10 Mph in the afternoon. Chance of measurable precipitation 20 percent.

Tonight 29 Aug San Diego County Mountains

Clear. Lows 57 to 67. Areas of Winds west to 10 Mph.

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Julian County Park Temperature Statistics

August Temperature

Ramona, Ramona Airport (18 miles)

  • Lowest 1 August, 2025

    48 °F

  • Average August

    74.7 °F

  • Highest 7 August, 2025

    102.9 °F

Climate (2020–Present)

Ramona, Ramona Airport (18 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    64.1 °F

  • Average High 2020–2025

    76.6 °F
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