Sun City Weather Forecast

    • 68
    • 104

    Hot

    • 71
    • 104

    Hot

    • 71
    • 104

    Slight Chance Thunderstorms

    • 71
    • 103

    Chance Thunderstorms

    • 70
    • 102

    Chance Thunderstorms

    • 66
    • 98

    Chance Thunderstorms

Today 20 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 97 to 104. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph in the afternoon.

Tonight 20 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. Lows 66 to 71. Areas of Winds west 10 to 15 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sun City Temperature Statistics

August Temperature

Murrieta/Temecula French Valley (9.9 miles)

  • Lowest 1 August, 2025

    55.4 °F

  • Average August

    75.6 °F

  • Highest 7 August, 2025

    105.8 °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

    62.8 °F

  • Average High 2020–2025

    77.8 °F
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