Red Mountain Reservoir Weather Forecast

    • 46
    • 70

    Partly Sunny

    • 48
    • 68

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 49
    • 73

    Mostly Sunny

Today 3 Dec San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs 71 to 76. Light Winds becoming west 10 Mph this afternoon.

Tonight 3 Dec San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Colder. Lows 35 to 45 in wind Sheltered Areas to 43 to 49 in warmer Locations. Light Winds.

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Red Mountain Reservoir Temperature Statistics

December Temperature

Fallbrook Community Airpark (4.3 miles)

  • Lowest 1 December, 2024

    51.8 °F

  • Average December

    61 °F

  • Highest 1 December, 2024

    75.2 °F

Climate (2019–Present)

Fallbrook Community Airpark (4.3 miles)

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  • Average Low 2019–2024

    53.6 °F

  • Average 2019–2024

    61.9 °F

  • Average High 2019–2024

    74.2 °F
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