Grand Terrace Weather Forecast

    • 53
    • 78

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 55
    • 82

    Mostly Sunny

Today 28 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 76 to 80. Areas of Winds southwest to 10 Mph becoming west with Gusts to 25 Mph in the afternoon.

Tonight 28 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 46 to 53. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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Grand Terrace Temperature Statistics

April Temperature

San Bernardino Intl. Airport (5 miles)

  • Lowest 6 April, 2024

    37.4 °F

  • Average April

    57.1 °F

  • Highest 11 April, 2024

    89.6 °F

Climate (2019–Present)

San Bernardino Intl. Airport (5 miles)

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  • Average Low 2019–2024

    54.4 °F

  • Average 2019–2024

    63.4 °F

  • Average High 2019–2024

    80.7 °F
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