Arrowhead Weather Forecast

    • 56
    • 84

    Increasing Clouds

    • 56
    • 82

    Partly Sunny

    • 55
    • 80

    Partly Sunny

    • 53
    • 75

    Partly Sunny

    • 52
    • 70

    Partly Sunny

    • 53
    • 71

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

Today 23 May San Bernardino and Riverside County Valleys-The Inland Empire

Mostly cloudy this morning. Becoming sunny. Highs 78 to 85. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 23 May San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this evening. Becoming mostly cloudy. Patchy fog overnight. Lows 50 to 55. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arrowhead Temperature Statistics

May Temperature

San Bernardino Intl. Airport (5 miles)

  • Lowest 6 May, 2026

    49.1 °F

  • Average May

    64.7 °F

  • Highest 11 May, 2026

    98.6 °F

Climate (2021–Present)

San Bernardino Intl. Airport (5 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.3 °F

  • Average High 2021–2026

    80.6 °F
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