Santiago Peak Weather Forecast

    • 64
    • 71

    Sunny

    • 67
    • 75

    Sunny

    • 69
    • 75

    Sunny

    • 73
    • 78

    Mostly Sunny

    • 76
    • 81

    Mostly Sunny

    • 76
    • 82

    Mostly Sunny

    • 76
    • 82

    Mostly Sunny

Today 17 Aug Santa Ana Mountains and Foothills

Mostly sunny. Warmer. Highs 78 to 88. Light Winds becoming west 10 to 15 Mph this afternoon.

Tonight 17 Aug Santa Ana Mountains and Foothills

Mostly clear. Lows 56 to 62. Areas of Winds northwest to 10 Mph this evening becoming light.

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Santiago Peak Temperature Statistics

August Temperature

Corona Airport (13 miles)

  • Lowest 2 August, 2025

    57 °F

  • Average August

    74.3 °F

  • Highest 7 August, 2025

    100.9 °F

Climate (2020–Present)

Corona Airport (13 miles)

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  • Average Low 2020–2025

    52.2 °F

  • Average 2020–2025

    65 °F

  • Average High 2020–2025

    78.1 °F
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