Lake Arrowhead Weather Forecast

    • 47
    • 77

    Increasing Clouds

    • 50
    • 74

    Mostly Cloudy

    • 55
    • 80

    Partly Sunny

    • 41
    • 77

    Mostly Sunny

    • 40
    • 68

    Mostly Sunny

    • 47
    • 72

    Partly Sunny

Today 16 Sep Interior York

Mostly sunny. Highs in the mid 70s. Light and variable Winds.

Tonight 16 Sep Interior York

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Arrowhead Temperature Statistics

September Temperature

Sanford, Sanford Regional Airport (18 miles)

  • Lowest 9 September, 2025

    39 °F

  • Average September

    60.4 °F

  • Highest 6 September, 2025

    82 °F

Climate (2020–Present)

Sanford, Sanford Regional Airport (18 miles)

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  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    58.4 °F
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