Anaheim Weather Forecast

    • 65
    • 79

    Mostly Sunny

    • 66
    • 82

    Mostly Sunny

    • 66
    • 80

    Partly Sunny

    • 65
    • 78

    Mostly Sunny

    • 66
    • 80

    Mostly Sunny

Today 18 Sep Orange County Inland

Partly cloudy. Highs 86 to 90.

Tonight 18 Sep Orange County Inland

Mostly clear this evening. Becoming partly cloudy. Lows 57 to 65. Areas of Winds west to 10 Mph this evening becoming light.

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Anaheim Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (4.3 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    78.7 °F

  • Highest 9 September, 2026

    108.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (4.3 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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