Lake Arrowhead Weather Forecast

    • 63
    • 81

    Sunny

    • 63
    • 80

    Sunny

    • 64
    • 78

    Mostly Sunny

    • 63
    • 78

    Sunny

    • 63
    • 80

    Sunny

    • 63
    • 80

    Sunny

Today 3 Oct San Bernardino County Mountains

Mostly sunny. Highs 70 to 80 above 6000 feet to 81 to 91 below 6000 feet. Areas of Winds east 10 to 20 Mph. Gusts to 30 Mph. Becoming 35 Mph this afternoon.

Tonight 3 Oct San Bernardino County Mountains

Mostly clear. Cooler. Lows 47 to 57 above 6000 feet to 58 to 68 below 6000 feet. Areas of Winds southeast 10 to 20 Mph with Gusts to 30 Mph.

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Lake Arrowhead Temperature Statistics

October Temperature

San Bernardino Intl. Airport (11.8 miles)

  • Lowest 1 October, 2026

    60.8 °F

  • Average October

    73.3 °F

  • Highest 1 October, 2026

    98.6 °F

Climate (2021–2026)

San Bernardino Intl. Airport (11.8 miles)

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  • Average Low 2021–2026

    54.2 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    80.3 °F
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