Northwest Weather Forecast

    • 69
    • 89

    Increasing Clouds

    • 65
    • 87

    Partly Sunny

    • 66
    • 81

    Mostly Sunny

    • 69
    • 86

    Mostly Sunny

    • 69
    • 88

    Mostly Sunny

    • 69
    • 88

    Partly Sunny

Today 26 Sep Orange County Inland

Partly cloudy in the morning. Becoming mostly sunny. Highs 84 to 89 towards the coast to 91 farther inland. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 26 Sep Orange County Inland

Partly cloudy in the evening. Becoming mostly cloudy. Lows 64 to 69. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Northwest Temperature Statistics

September Temperature

John Wayne-Orange County Airport (6.8 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    76.4 °F

  • Highest 9 September, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (6.8 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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