Grand Terrace Weather Forecast

    • 53
    • 82

    Sunny

    • 53
    • 81

    Partly Sunny

    • 50
    • 71

    Chance Rain Showers

    • 46
    • 65

    Slight Chance Rain Showers

    • 45
    • 68

    Slight Chance Rain Showers

    • 45
    • 68

    Mostly Sunny

Today 8 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Sunny. Highs 78 to 84. Areas of Winds east to 10 Mph becoming west this afternoon.

Tonight 8 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 46 to 50 in wind Sheltered Areas to 50 to 58 in warmer Locations. Light Winds.

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Grand Terrace Temperature Statistics

February Temperature

San Bernardino Intl. Airport (5 miles)

  • Lowest 3 February, 2026

    47.1 °F

  • Average February

    63 °F

  • Highest 4 February, 2026

    86 °F

Climate (2021–Present)

San Bernardino Intl. Airport (5 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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