Guasti Weather Forecast

    • 49
    • 72

    Partly Sunny

    • 51
    • 76

    Mostly Sunny

    • 52
    • 81

    Sunny

    • 52
    • 77

    Mostly Cloudy

    • 49
    • 67

    Chance Rain Showers

    • 46
    • 67

    Chance Rain Showers

Today 6 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 69 to 73. Light Winds becoming west 10 Mph this afternoon.

Tonight 6 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. Patchy fog overnight. Lows 42 to 46 in wind Sheltered Areas to 45 to 52 in warmer Locations. Areas of Winds west to 10 Mph in the evening becoming light.

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Guasti Temperature Statistics

February Temperature

Ontario International Airport (0.6 miles)

  • Lowest 2 February, 2026

    48.7 °F

  • Average February

    68.2 °F

  • Highest 4 February, 2026

    87.1 °F

Climate (2021–Present)

Ontario International Airport (0.6 miles)

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  • Average Low 2021–2026

    55.6 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    79.1 °F
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