San Joaquin Reservoir Weather Forecast

    • 47
    • 60

    Patchy Fog

    • 49
    • 63

    Partly Sunny

    • 50
    • 65

    Mostly Cloudy

    • 49
    • 66

    Mostly Cloudy

    • 51
    • 61

    Rain Likely

    • 48
    • 59

    Chance Rain

    • 47
    • 60

    Slight Chance Rain Showers

Today 31 Jan Orange County Coastal

Partly cloudy. Highs 61 to 64. Areas of Winds northwest to 10 Mph becoming west this afternoon.

Tonight 31 Jan Orange County Coastal

Partly cloudy. Lows around 46. Areas of Winds northwest to 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin Reservoir Temperature Statistics

January Temperature

John Wayne-Orange County Airport (4.3 miles)

  • Lowest 16 January, 2025

    44.7 °F

  • Average January

    59.2 °F

  • Highest 22 January, 2025

    86.6 °F

Climate (2020–Present)

John Wayne-Orange County Airport (4.3 miles)

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  • Average Low 2020–2025

    58.9 °F

  • Average 2020–2025

    65.8 °F

  • Average High 2020–2025

    73.8 °F
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