Fallbrook Weather Forecast

    • 48
    • 77

    Mostly Sunny

    • 38
    • 72

    Mostly Sunny

    • 43
    • 75

    Mostly Sunny

    • 45
    • 74

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

    • 49
    • 74

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

Today 2 Dec San Diego County Inland Valleys

Mostly sunny in the morning. Becoming partly cloudy. Highs around 78 in the western Valleys to 68 to 73 near the Foothills. Areas of Winds east 15 to 20 Mph. Gusts to 30 Mph in the afternoon.

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Fallbrook Temperature Statistics

December Temperature

Fallbrook Community Airpark (1.2 miles)

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Climate (2014–Present)

Fallbrook Community Airpark (1.2 miles)

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  • Average Low 2014–Present

    54.6 °F

  • Average 2014–Present

    63.1 °F

  • Average High 2014–Present

    75.5 °F
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