Fullerton Weather Forecast

    • 73
    • 91

    Becoming Sunny

    • 68
    • 95

    Chance Thunderstorms

    • 68
    • 84

    Chance Thunderstorms

    • 69
    • 89

    Slight Chance Thunderstorms

    • 71
    • 95

    Slight Chance Thunderstorms

    • 73
    • 98

    Hot

Today 22 Jul Nance

Partly cloudy. Slight chance of Showers and Thunderstorms in the Morning, then slight chance of Showers in the afternoon. Hot and humid. Highs around 90. South Winds 10 to 20 Mph with Gusts to around 30 Mph. Chance of precipitation 20 percent. Heat index Readings 98 to 103.

Tonight 22 Jul Nance

Partly cloudy. Lows in the lower 70s. South Winds 10 to 15 Mph with Gusts to around 20 Mph.

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Fullerton Temperature Statistics

July Temperature

Albion Municipal Airport (25.5 miles)

  • Lowest 1 July, 2025

    55.9 °F

  • Average July

    74.1 °F

  • Highest 14 July, 2025

    90.1 °F

Climate (2020–Present)

Albion Municipal Airport (25.5 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    50.1 °F

  • Average High 2020–2025

    62.3 °F
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