Whelan Lake Weather Forecast

    • 62
    • 75

    Decreasing Clouds

    • 61
    • 76

    Mostly Cloudy

    • 61
    • 74

    Mostly Cloudy

    • 60
    • 73

    Mostly Cloudy

    • 62
    • 75

    Partly Sunny

    • 64
    • 77

    Partly Sunny

Today 23 Jul San Diego County Coastal Areas

Partly cloudy this morning. Becoming mostly sunny. Highs 70 to 75 near the coast to 75 to 78 inland. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 23 Jul San Diego County Coastal Areas

Partly cloudy in the evening. Becoming mostly cloudy. Lows 58 to 64. Areas of Winds northwest 10 to 15 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Whelan Lake Temperature Statistics

July Temperature

Oceanside, Oceanside Municipal Airport (1.9 miles)

  • Lowest 5 July, 2025

    55.7 °F

  • Average July

    68.6 °F

  • Highest 8 July, 2025

    77.6 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (1.9 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    71.8 °F
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