Riverview Weather Forecast

    • 70
    • 88

    Increasing Clouds

    • 71
    • 90

    Mostly Cloudy

    • 68
    • 85

    Partly Sunny

    • 67
    • 81

    Mostly Sunny

    • 70
    • 88

    Sunny

    • 70
    • 90

    Mostly Sunny

Today 25 Sep Orange County Inland

Partly cloudy in the morning. Becoming sunny. Highs 86 to 90. Light Winds becoming west 10 Mph in the afternoon.

Tonight 25 Sep Orange County Inland

Mostly clear in the evening. Becoming partly cloudy. Lows 66 to 70. Light Winds.

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Riverview Temperature Statistics

September Temperature

John Wayne-Orange County Airport (5.6 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    76.5 °F

  • Highest 9 September, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (5.6 miles)

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  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    73.8 °F
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