Crestline Weather Forecast

    • 48
    • 64

    Increasing Clouds

    • 47
    • 60

    Rain Showers

    • 41
    • 48

    Rain Showers

    • 43
    • 53

    Sunny

    • 45
    • 58

    Mostly Sunny

    • 46
    • 58

    Partly Sunny

Today 20 Oct San Bernardino County Mountains

Mostly sunny this Morning, then partly cloudy with a slight chance of Showers this afternoon. Highs 53 to 63 above 6000 feet to 64 to 73 below 6000 feet. Snow level above 8000 feet this afternoon. Areas of Winds south 10 to 15 Mph with Gusts to 30 Mph. Chance of measurable precipitation 20 percent.

Tonight 20 Oct San Bernardino County Mountains

Mostly clear. A slight chance of Showers in the evening. Colder. Lows 35 to 45 above 6000 feet to 45 to 53 below 6000 feet. Snow level above 8000 feet. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph. Chance of measurable precipitation 20 percent.

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Crestline Temperature Statistics

October Temperature

San Bernardino Intl. Airport (10.6 miles)

  • Lowest 14 October, 2026

    48.9 °F

  • Average October

    74.1 °F

  • Highest 2 October, 2026

    104 °F

Climate (2021–2026)

San Bernardino Intl. Airport (10.6 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.3 °F

  • Average High 2021–2026

    80.4 °F
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