San Tan Valley Weather Forecast

    • 82
    • 106

    Hot

    • 83
    • 106

    Slight Chance Thunderstorms

    • 80
    • 104

    Slight Chance Thunderstorms

    • 79
    • 103

    Slight Chance Thunderstorms

    • 76
    • 101

    Slight Chance Thunderstorms

    • 77
    • 98

    Chance Thunderstorms

Today 31 Aug Northwest Pinal County

Sunny. Highs 104 to 109. Southeast wind around 5 Mph in the morning becoming northwest in the afternoon.

Tonight 31 Aug Northwest Pinal County

Mostly clear in the evening then becoming partly cloudy. Lows 74 to 84. West wind 5 to 10 Mph in the evening becoming southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Tan Valley Temperature Statistics

August Temperature

Phoenix-Mesa Gateway Airport (10.6 miles)

  • Lowest 15 August, 2025

    75.2 °F

  • Average August

    93.9 °F

  • Highest 7 August, 2025

    114.8 °F

Climate (2020–Present)

Phoenix-Mesa Gateway Airport (10.6 miles)

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  • Average Low 2020–2025

    60 °F

  • Average 2020–2025

    70.3 °F

  • Average High 2020–2025

    85.6 °F
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