Arrowhead Weather Forecast

    • 54
    • 67

    Rain Showers

    • 52
    • 63

    Rain Showers

    • 50
    • 62

    Rain Showers

    • 44
    • 60

    Rain Showers

    • 43
    • 60

    Slight Chance Rain Showers

    • 45
    • 62

    Partly Sunny

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

Patchy fog in the morning. Cloudy in the Morning, then partly cloudy with a slight chance of Showers in the afternoon. Highs 63 to 69. Areas of Winds south 10 to 15 Mph. Chance of measurable precipitation 20 percent.

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

Cloudy. A chance of Showers in the Evening, then Showers overnight. Locally heavy rainfall possible overnight. Lows 49 to 55. Areas of Winds southeast 10 to 20 Mph. Gusts to 25 Mph. Becoming 35 Mph overnight.

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  • Temperature Forecast NOAA

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Arrowhead Temperature Statistics

December Temperature

San Bernardino Intl. Airport (5 miles)

  • Lowest 4 December, 2025

    40.3 °F

  • Average December

    58.4 °F

  • Highest 10 December, 2025

    87.8 °F

Climate (2020–Present)

San Bernardino Intl. Airport (5 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    63.1 °F

  • Average High 2020–2025

    80.3 °F
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