Ernst Field Weather Forecast

    • 58
    • 76

    Mostly Sunny

    • 59
    • 78

    Mostly Sunny

    • 60
    • 80

    Sunny

    • 62
    • 83

    Mostly Sunny

    • 60
    • 81

    Mostly Sunny

    • 60
    • 79

    Mostly Sunny

Today 16 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly cloudy in the morning. Becoming mostly sunny. Highs 81 to 86. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 16 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear in the evening. Becoming partly cloudy. Lows 52 to 60. Areas of Winds southwest 10 Mph in the evening becoming light.

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Ernst Field Temperature Statistics

September Temperature

Big Bear City Airport (46 miles)

  • Lowest 1 September, 2026

    41.2 °F

  • Average September

    62 °F

  • Highest 10 September, 2026

    81.3 °F

Climate (2021–2026)

Big Bear City Airport (46 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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