Sun City Weather Forecast

    • 38
    • 67

    Mostly Sunny

    • 42
    • 70

    Sunny

    • 43
    • 72

    Sunny

    • 47
    • 77

    Mostly Sunny

    • 49
    • 79

    Mostly Sunny

    • 49
    • 81

    Mostly Sunny

Today 4 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 65 to 71. Areas of Winds north 10 to 20 Mph. Gusts to 35 Mph. Becoming 30 Mph in the afternoon.

Tonight 4 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows around 36 in wind Sheltered Areas to 37 to 45 in warmer Locations. Areas of Winds north 10 to 15 Mph with Gusts to 25 Mph becoming east overnight.

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Sun City Temperature Statistics

December Temperature

Murrieta/Temecula French Valley (9.9 miles)

  • Lowest 1 December, 2025

    44.6 °F

  • Average December

    52.5 °F

  • Highest 1 December, 2025

    66.2 °F

Climate (2020–Present)

Murrieta/Temecula French Valley (9.9 miles)

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  • Average Low 2020–2025

    50.6 °F

  • Average 2020–2025

    62.7 °F

  • Average High 2020–2025

    77.7 °F
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