Sun City Weather Forecast

    • 60
    • 89

    Increasing Clouds

    • 68
    • 92

    Chance Rain Showers

    • 68
    • 89

    Chance Rain Showers

    • 66
    • 94

    Partly Sunny

    • 68
    • 96

    Partly Sunny

    • 69
    • 98

    Hot

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

Mostly sunny. Highs 84 to 89. Areas of Winds south to 10 Mph becoming southwest with Gusts to 25 Mph this afternoon.

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

Mostly clear in the evening. Becoming partly cloudy. Lows 57 to 62. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sun City Temperature Statistics

September Temperature

Murrieta/Temecula French Valley (9.9 miles)

  • Lowest 2 September, 2026

    55.9 °F

  • Average September

    71.3 °F

  • Highest 1 September, 2026

    88.7 °F

Climate (2021–2026)

Murrieta/Temecula French Valley (9.9 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    78.2 °F
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