San Bernardino Weather Forecast

    • 55
    • 87

    Becoming Sunny

    • 58
    • 93

    Sunny

    • 58
    • 95

    Partly Sunny

    • 56
    • 91

    Mostly Sunny

    • 59
    • 95

    Mostly Sunny

    • 62
    • 99

    Hot

Today 11 Mar San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Warmer. Highs 81 to 86. Light Winds becoming west 10 Mph in the afternoon.

Tonight 11 Mar San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 50 to 53 in wind Sheltered Areas to 54 to 62 in warmer Locations. Areas of Winds west to 10 Mph becoming east with Gusts to 30 Mph overnight.

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San Bernardino Temperature Statistics

March Temperature

San Bernardino Intl. Airport (2.5 miles)

  • Lowest 6 March, 2026

    44.1 °F

  • Average March

    60.8 °F

  • Highest 8 March, 2026

    84.2 °F

Climate (2021–Present)

San Bernardino Intl. Airport (2.5 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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