Humble Reservoir Weather Forecast

    • 53
    • 67

    Mostly Cloudy

    • 52
    • 66

    Chance Rain Showers

    • 52
    • 63

    Slight Chance Rain Showers

    • 47
    • 65

    Mostly Sunny

    • 48
    • 68

    Partly Sunny

    • 49
    • 69

    Partly Sunny

Today 21 Jan Orange County Inland

Areas of fog this morning. Mostly cloudy. Local visibility one quarter mile or less at Times this morning. Highs around 70. Light Winds.

Tonight 21 Jan Orange County Inland

Mostly cloudy. Lows around 52. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Humble Reservoir Temperature Statistics

January Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 9 January, 2026

    42.1 °F

  • Average January

    62.8 °F

  • Highest 14 January, 2026

    84.9 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    76.4 °F
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