Walnut Weather Forecast

    • 55
    • 66

    Rain Showers

    • 56
    • 67

    Mostly Cloudy

    • 54
    • 67

    Rain Showers Likely

    • 54
    • 66

    Rain Showers Likely

    • 52
    • 65

    Chance Rain Showers

    • 48
    • 65

    Chance Rain Showers

Today 1 Jan Orange County Inland

Showers and a slight chance of Thunderstorms this Morning, then Showers likely this afternoon. Some Thunderstorms may produce heavy rainfall this morning. Highs 63 to 66. Areas of Winds south 10 to 15 Mph. Gusts to 25 Mph this morning.

Tonight 1 Jan Orange County Inland

Partly cloudy. A slight chance of Showers in the evening. Lows 50 to 55. Light Winds. Chance of measurable precipitation 20 percent.

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Walnut Temperature Statistics

January Temperature

John Wayne-Orange County Airport (4.3 miles)

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Climate (2021–Present)

John Wayne-Orange County Airport (4.3 miles)

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  • Average Low 2021–2025

    58.8 °F

  • Average 2021–2025

    65.6 °F

  • Average High 2021–2025

    73.3 °F
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