Billy Joe Airport Weather Forecast

    • 54
    • 80

    Decreasing Clouds

    • 53
    • 82

    Partly Sunny

    • 54
    • 84

    Sunny

    • 56
    • 86

    Mostly Sunny

    • 54
    • 85

    Mostly Sunny

    • 54
    • 83

    Mostly Sunny

Today 16 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly cloudy in the morning. Becoming mostly sunny. Highs 81 to 86. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 16 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear in the evening. Becoming partly cloudy. Lows 52 to 60. Areas of Winds southwest 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Billy Joe Airport Temperature Statistics

September Temperature

Murrieta/Temecula French Valley (5.6 miles)

  • Lowest 3 September, 2026

    55.6 °F

  • Average September

    77.2 °F

  • Highest 9 September, 2026

    105.3 °F

Climate (2021–2026)

Murrieta/Temecula French Valley (5.6 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    78.1 °F
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