Lake Arrowhead Weather Forecast

    • 60
    • 77

    Sunny

    • 62
    • 77

    Sunny

    • 63
    • 78

    Sunny

    • 63
    • 79

    Mostly Sunny

    • 63
    • 78

    Mostly Sunny

    • 65
    • 78

    Sunny

Today 31 Jul San Bernardino County Mountains

Sunny, warmer. Highs 74 to 84 above 6000 feet to 80 to 90 below 6000 feet. Areas of Winds south 10 to 20 Mph. Gusts to 25 Mph this afternoon.

Tonight 31 Jul San Bernardino County Mountains

Clear. Lows 46 to 56 above 6000 feet to 55 to 65 below 6000 feet. Areas of Winds south 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Arrowhead Temperature Statistics

July Temperature

San Bernardino Intl. Airport (11.8 miles)

  • Lowest 26 July, 2025

    58.6 °F

  • Average July

    72.1 °F

  • Highest 10 July, 2025

    102.2 °F

Climate (2020–Present)

San Bernardino Intl. Airport (11.8 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    63.2 °F

  • Average High 2020–2025

    80.6 °F
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