Oneonta Slough Weather Forecast

    • 69
    • 75

    Mostly Cloudy

    • 69
    • 75

    Mostly Cloudy

    • 69
    • 75

    Mostly Cloudy

    • 69
    • 75

    Partly Sunny

    • 69
    • 75

    Partly Sunny

    • 69
    • 75

    Partly Sunny

    • 70
    • 76

    Partly Sunny

Today 25 Jul San Diego County Coastal Areas

Patchy fog this morning. Partly cloudy. Highs 75 to 80 near the coast to 82 to 87 inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 25 Jul San Diego County Coastal Areas

Partly cloudy this evening. Becoming mostly cloudy. Patchy fog. Lows 64 to 68. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Oneonta Slough Temperature Statistics

July Temperature

Imperial Beach Naval Outlying Field - Ream Field (1.2 miles)

  • Lowest 1 July, 2026

    59 °F

  • Average July

    69.7 °F

  • Highest 21 July, 2026

    79 °F

Climate (2021–2026)

Imperial Beach Naval Outlying Field - Ream Field (1.2 miles)

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  • Average Low 2021–2026

    56.4 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    69.3 °F
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