Fontana Weather Forecast

    • 51
    • 65

    Rain

    • 50
    • 60

    Chance Rain Showers

    • 47
    • 59

    Rain Likely

    • 45
    • 58

    Chance Rain Showers

    • 46
    • 61

    Partly Sunny

    • 47
    • 58

    Chance Rain Showers

    • 46
    • 60

    Chance Rain Showers

Today 15 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Rain and a slight chance of Thunderstorms. Rain may be heavy at Times. Highs 63 to 67. Areas of Winds southeast 10 to 15 Mph with Gusts to 30 Mph becoming southwest with Gusts to 25 Mph this afternoon.

Tonight 15 Nov San Bernardino and Riverside County Valleys-The Inland Empire

A slight chance of Thunderstorms. Showers, cooler. Lows 46 to 51. Areas of Winds south 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana Temperature Statistics

November Temperature

Ontario International Airport (8.1 miles)

  • Lowest 2 November, 2025

    53.1 °F

  • Average November

    67 °F

  • Highest 10 November, 2025

    93 °F

Climate (2020–Present)

Ontario International Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    55.5 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    79 °F
Get WillyWeather+ to remove ads