Smith-Murphy Park Weather Forecast

    • 66
    • 82

    Increasing Clouds

    • 66
    • 80

    Mostly Cloudy

    • 65
    • 78

    Partly Sunny

    • 66
    • 79

    Mostly Sunny

    • 67
    • 85

    Mostly Sunny

    • 68
    • 86

    Partly Sunny

Today 19 Sep Orange County Inland

Partly cloudy in the morning. Becoming sunny. Highs around 80 towards the coast to 81 to 84 farther inland. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 19 Sep Orange County Inland

Mostly clear in the evening. Becoming mostly cloudy. Lows 58 to 66. Areas of Winds southwest to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Smith-Murphy Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (0.6 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 (0.6 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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