Irvine Lake Weather Forecast

    • 58
    • 80

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 65
    • 89

    Mostly Sunny

    • 69
    • 94

    Mostly Sunny

    • 71
    • 96

    Sunny

    • 72
    • 97

    Sunny

Today 28 Sep Orange County Inland

Mostly sunny. Highs 93 to 96 towards the coast to 98 farther inland.

Tonight 28 Sep Orange County Inland

Mostly clear. Lows 57 to 64. Areas of Winds southeast to 10 Mph this evening becoming light.

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Irvine Lake Temperature Statistics

September Temperature

Corona Airport (10.6 miles)

  • Lowest 2 September, 2026

    53.1 °F

  • Average September

    73.7 °F

  • Highest 9 September, 2026

    109 °F

Climate (2021–2026)

Corona Airport (10.6 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    65.2 °F

  • Average High 2021–2026

    78.4 °F
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