Crestline Weather Forecast

    • 29
    • 37

    Mostly Sunny

    • 38
    • 47

    Increasing Clouds

    • 41
    • 54

    Mostly Sunny

    • 46
    • 58

    Partly Sunny

    • 47
    • 61

    Partly Sunny

    • 47
    • 60

    Partly Sunny

    • 49
    • 62

    Partly Sunny

Today 20 Feb San Bernardino County Mountains

Partly cloudy this morning. Becoming mostly sunny. Highs 32 to 39 above 6000 feet to 37 to 45 below 6000 feet. Areas of Winds west 25 to 35 Mph with Gusts to 55 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 20 Feb San Bernardino County Mountains

Clear. Lows 13 to 23 above 6000 feet to 22 to 32 below 6000 feet. Light Winds becoming southwest 10 Mph overnight.

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Crestline Temperature Statistics

February Temperature

San Bernardino Intl. Airport (10.6 miles)

  • Lowest 14 February, 2026

    41 °F

  • Average February

    57.3 °F

  • Highest 4 February, 2026

    86 °F

Climate (2021–Present)

San Bernardino Intl. Airport (10.6 miles)

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  • Average Low 2021–2026

    54.1 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    80.3 °F
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