Lake Arrowhead Weather Forecast

    • 76
    • 96

    Chance Rain Showers

    • 70
    • 91

    Partly Sunny

    • 69
    • 88

    Partly Sunny

    • 72
    • 91

    Chance Rain Showers

    • 73
    • 91

    Slight Chance Thunderstorms

    • 74
    • 94

    Mostly Sunny

Today 21 Jul Union

Mostly sunny. Near steady temperature in the mid 90s. Southeast Winds around 5 Mph. Heat index Values up to 110.

Tonight 21 Jul Union

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Humid with Lows in the mid 70s. Light and variable Winds, becoming southeast around 5 Mph after midnight. Chance of rain 50 percent. Heat index Values up to 106 early in the evening.

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Lake Arrowhead Temperature Statistics

July Temperature

Oxford, University-Oxford Airport (24.2 miles)

  • Lowest 6 July, 2026

    69.8 °F

  • Average July

    80.5 °F

  • Highest 1 July, 2026

    96.8 °F

Climate (2021–2026)

Oxford, University-Oxford Airport (24.2 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    62.5 °F

  • Average High 2021–2026

    73.8 °F
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