Fontana Weather Forecast

    • 47
    • 72

    Sunny

    • 49
    • 70

    Partly Sunny

    • 49
    • 66

    Chance Rain

    • 47
    • 57

    Rain

    • 46
    • 57

    Rain

    • 42
    • 56

    Chance Rain

Today 13 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this morning. Becoming mostly sunny. Highs 67 to 74. Areas of Winds north to 10 Mph becoming west this afternoon. Gusts to 25 Mph.

Tonight 13 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 38 to 42 in wind Sheltered Areas to 41 to 48 in warmer Locations. Areas of Winds south to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Fontana Temperature Statistics

February Temperature

Ontario International Airport (8.1 miles)

  • Lowest 2 February, 2026

    48.7 °F

  • Average February

    64.3 °F

  • Highest 4 February, 2026

    87.7 °F

Climate (2021–Present)

Ontario International Airport (8.1 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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