Olive Hills Reservoir Weather Forecast

    • 45
    • 63

    Mostly Sunny

    • 49
    • 69

    Blowing Dust

    • 50
    • 71

    Breezy

    • 52
    • 73

    Sunny

    • 54
    • 75

    Mostly Sunny

    • 55
    • 78

    Sunny

Today 9 Jan Orange County Inland

Areas of blowing dust in the morning. Mostly sunny. Highs 63 to 66. Areas of Winds northeast 30 to 40 Mph with Gusts to 60 Mph. Becoming 15 to 25 Mph with Gusts to 40 Mph in the afternoon.

Tonight 9 Jan Orange County Inland

Mostly clear. Areas of blowing dust overnight. Lows 42 to 45. Areas of Winds northeast 20 to 30 Mph with Gusts to 50 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Olive Hills Reservoir Temperature Statistics

January Temperature

Fullerton, Fullerton Municipal Airport (9.3 miles)

  • Lowest 5 January, 2026

    52 °F

  • Average January

    59 °F

  • Highest 1 January, 2026

    66.9 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (9.3 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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