Fontana Weather Forecast

    • 60
    • 91

    Rain Showers

    • 54
    • 76

    Mostly Sunny

    • 58
    • 78

    Chance Rain Showers

    • 63
    • 82

    Rain Showers Likely

    • 65
    • 90

    Rain Showers Likely

    • 61
    • 82

    Slight Chance Rain Showers

Today 14 Jun Lebanon

Mostly sunny in the Morning, then mostly cloudy with Showers with a chance of Thunderstorms in the afternoon. Very warm. Humid with Highs in the upper 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 80 percent.

Tonight 14 Jun Lebanon

Mostly cloudy. Lows in the mid 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana Temperature Statistics

June Temperature

Muir Army Air Field / Indiantown (11.2 miles)

  • Lowest 2 June, 2026

    53.8 °F

  • Average June

    75 °F

  • Highest 11 June, 2026

    94.3 °F

Climate (2021–Present)

Muir Army Air Field / Indiantown (11.2 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    64 °F
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