Weir Canyon Regional Park Weather Forecast

    • 52
    • 68

    Mostly Cloudy

    • 51
    • 65

    Chance Rain Showers

    • 52
    • 63

    Slight Chance Rain Showers

    • 47
    • 65

    Mostly Sunny

    • 47
    • 67

    Partly Sunny

    • 48
    • 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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Weir Canyon Regional Park Temperature Statistics

January Temperature

Corona Airport (8.7 miles)

  • Lowest 8 January, 2026

    37.9 °F

  • Average January

    61.3 °F

  • Highest 17 January, 2026

    84 °F

Climate (2021–Present)

Corona Airport (8.7 miles)

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  • Average Low 2021–2026

    52.1 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    78 °F
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