Fallbrook Weather Forecast

    • 64
    • 89

    Increasing Clouds

    • 65
    • 89

    Mostly Sunny

    • 65
    • 88

    Patchy Fog

    • 64
    • 87

    Partly Sunny

    • 63
    • 85

    Partly Sunny

    • 62
    • 83

    Partly Sunny

    • 62
    • 81

    Mostly Sunny

Today 7 Aug San Diego County Inland Valleys

Mostly sunny. Highs 85 to 89 in the western Valleys to 89 to 94 near the Foothills. Areas of Winds southwest to 10 Mph becoming west this afternoon.

Tonight 7 Aug San Diego County Inland Valleys

Mostly clear this evening. Becoming partly cloudy. Lows 63 to 68. Areas of Winds west to 10 Mph this evening becoming light.

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Fallbrook Temperature Statistics

August Temperature

Fallbrook Community Airpark (1.2 miles)

  • Lowest 5 August, 2026

    62.6 °F

  • Average August

    72.7 °F

  • Highest 2 August, 2026

    93.2 °F

Climate (2021–2026)

Fallbrook Community Airpark (1.2 miles)

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  • Average Low 2021–2026

    53.8 °F

  • Average 2021–2026

    62.1 °F

  • Average High 2021–2026

    74.5 °F
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