Crestline Weather Forecast

    • 43
    • 54

    Becoming Sunny

    • 51
    • 67

    Sunny

    • 57
    • 71

    Sunny

    • 57
    • 76

    Partly Sunny

    • 56
    • 75

    Mostly Sunny

    • 58
    • 76

    Mostly Sunny

Today 10 Mar San Bernardino County Mountains

Mostly sunny. Highs 52 to 61 above 6000 feet to 57 to 67 below 6000 feet. Areas of Winds west 10 to 15 Mph. Gusts to 25 Mph. Becoming 30 Mph this afternoon.

Tonight 10 Mar San Bernardino County Mountains

Mostly clear. Lows 31 to 41 above 6000 feet to 40 to 49 below 6000 feet. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph becoming north overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crestline Temperature Statistics

March Temperature

San Bernardino Intl. Airport (10.6 miles)

  • Lowest 6 March, 2026

    44.1 °F

  • Average March

    60 °F

  • Highest 1 March, 2026

    82.4 °F

Climate (2021–Present)

San Bernardino Intl. Airport (10.6 miles)

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  • Average Low 2021–2026

    54.2 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    80.4 °F
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