Big Rock Park Weather Forecast

    • 35
    • 58

    Rain Showers

    • 41
    • 60

    Chance Rain Showers

    • 38
    • 61

    Chance Rain Showers

    • 36
    • 61

    Partly Sunny

    • 39
    • 65

    Partly Sunny

    • 44
    • 69

    Partly Sunny

    • 45
    • 73

    Mostly Sunny

Today 27 Jan San Diego County Inland Valleys

Showers. Highs around 56 in the western Valleys to 47 to 51 near the Foothills. Areas of Winds southeast 10 Mph becoming west this afternoon.

Tonight 27 Jan San Diego County Inland Valleys

Partly cloudy. A chance of Showers this evening. Colder. Lows 28 to 38 in wind Sheltered Areas to 34 to 41 in warmer Locations. Light Winds. Chance of measurable precipitation 40 percent.

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Big Rock Park Temperature Statistics

January Temperature

Gillespie Field Airport (2.5 miles)

  • Lowest 14 January, 2025

    30.2 °F

  • Average January

    48.7 °F

  • Highest 22 January, 2025

    82.4 °F

Climate (2020–Present)

Gillespie Field Airport (2.5 miles)

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  • Average Low 2020–2025

    53 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    76.1 °F
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