Lake Forest Weather Forecast

    • 42
    • 60

    Increasing Clouds

    • 41
    • 63

    Becoming Sunny

    • 42
    • 64

    Partly Sunny

    • 45
    • 68

    Mostly Sunny

    • 43
    • 67

    Partly Sunny

    • 47
    • 69

    Mostly Sunny

    • 46
    • 72

    Mostly Sunny

Today 17 Jan Orange County Inland

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs around 59. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 17 Jan Orange County Inland

Partly cloudy. Lows 40 to 46. Light Winds.

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  • Temperature Real-Time

Lake Forest Temperature Statistics

January Temperature

John Wayne-Orange County Airport (9.3 miles)

  • Lowest 15 January, 2025

    46 °F

  • Average January

    60.1 °F

  • Highest 8 January, 2025

    73.7 °F

Climate (2020–Present)

John Wayne-Orange County Airport (9.3 miles)

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  • Average Low 2020–2025

    58.9 °F

  • Average 2020–2025

    65.8 °F

  • Average High 2020–2025

    73.8 °F
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