Fontana Weather Forecast

    • 57
    • 78

    Breezy

    • 56
    • 79

    Decreasing Clouds

    • 56
    • 79

    Breezy

    • 56
    • 82

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 53
    • 79

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 10 Dec San Bernardino and Riverside County Valleys

Mostly cloudy. Colder. Lows 43 to 52 in wind Sheltered Areas to 49 to 58 in warmer Locations. Areas of Winds east 15 to 20 Mph with Gusts to 35 Mph becoming north with Gusts to 25 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana Temperature Statistics

December Temperature

Corona Airport (16.2 miles)

  • Lowest 3 December, 2017

    41 °F
  • Average December

    63.2 °F
  • Highest 8 December, 2017

    82 °F

Climate (2010–Present)

Corona Airport (16.2 miles)

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  • Average Low 2010–Present

    53.8 °F
  • Average 2010–Present

    67.4 °F
  • Average High 2010–Present

    79.9 °F
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