Sun City Grand Weather Forecast

    • 82
    • 101

    Hot

    • 80
    • 97

    Chance Thunderstorms

    • 80
    • 97

    Chance Rain Showers

    • 80
    • 98

    Hot

    • 79
    • 101

    Hot

    • 81
    • 103

    Hot

    • 82
    • 105

    Hot

Today 17 Sep Northwest Valley

Partly sunny. Highs 97 to 102. West wind 5 to 10 Mph.

Tonight 17 Sep Northwest Valley

Partly cloudy in the Evening, then considerable cloudiness with a slight chance of Showers and Thunderstorms after midnight. Lows 76 to 83. Southwest wind 5 to 10 Mph. Chance of rain 10 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sun City Grand Temperature Statistics

September Temperature

Luke Air Force Base / Phoenix (8.7 miles)

  • Lowest 14 September, 2025

    69.3 °F

  • Average September

    90.2 °F

  • Highest 9 September, 2025

    104.5 °F

Climate (2020–Present)

Luke Air Force Base / Phoenix (8.7 miles)

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  • Average Low 2020–2025

    62.4 °F

  • Average 2020–2025

    74.7 °F

  • Average High 2020–2025

    86.5 °F
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