Yorktown Weather Forecast

    • 66
    • 75

    Increasing Clouds

    • 65
    • 74

    Partly Sunny

    • 64
    • 73

    Partly Sunny

    • 64
    • 73

    Mostly Sunny

    • 65
    • 74

    Mostly Sunny

    • 65
    • 75

    Mostly Sunny

Today 14 Sep Orange County Coastal

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 74 to 77 at the Beaches to 78 to 82 farther inland and near higher coastal Terrain. Areas of Winds south 10 Mph.

Tonight 14 Sep Orange County Coastal

Partly cloudy. Patchy fog overnight. Lows 61 to 66. Areas of Winds southeast 10 Mph.

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Yorktown Temperature Statistics

September Temperature

John Wayne-Orange County Airport (6.8 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    78.5 °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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