Downtown Fontana Weather Forecast

    • 50
    • 70

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

    • 48
    • 76

    Partly Sunny

    • 51
    • 65

    Rain Likely

    • 50
    • 62

    Chance Rain

    • 47
    • 66

    Slight Chance Rain

Today 1 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 70 to 74. Light Winds becoming west 10 Mph this afternoon.

Tonight 1 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 42 to 45 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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Downtown Fontana Temperature Statistics

February Temperature

Ontario International Airport (8.7 miles)

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  • Average February

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Climate (2020–Present)

Ontario International Airport (8.7 miles)

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  • Average Low 2020–2025

    55.6 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    79.1 °F
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