Orange Hills Weather Forecast

    • 63
    • 79

    Increasing Clouds

    • 63
    • 79

    Partly Sunny

    • 64
    • 81

    Mostly Sunny

    • 65
    • 84

    Mostly Sunny

    • 64
    • 82

    Partly Sunny

    • 63
    • 81

    Mostly Sunny

Today 16 Sep Orange County Inland

Partly cloudy this morning. Becoming mostly sunny. Highs around 80. Areas of Winds east 10 Mph becoming south this afternoon.

Tonight 16 Sep Orange County Inland

Partly cloudy. Patchy fog overnight. Lows 55 to 64. Areas of Winds southwest to 10 Mph in the evening becoming light.

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Orange Hills Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (8.7 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    79.5 °F

  • Highest 9 September, 2026

    108.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    57.1 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    76.9 °F
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