Sweetwater Reservoir Weather Forecast

    • 58
    • 74

    Partly Sunny

    • 62
    • 78

    Mostly Sunny

    • 62
    • 77

    Patchy Fog

    • 64
    • 79

    Partly Sunny

    • 65
    • 79

    Partly Sunny

    • 65
    • 79

    Partly Sunny

Today 8 Jun San Diego County Coastal Areas

Partly cloudy in the morning. Becoming mostly sunny. Highs 68 to 73 near the coast to 72 to 75 inland. Areas of Winds southwest to 10 Mph.

Tonight 8 Jun San Diego County Coastal Areas

Partly cloudy. Lows 55 to 59. Areas of Winds southwest to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweetwater Reservoir Temperature Statistics

June Temperature

San Diego, Brown Field Municipal Airport (8.1 miles)

  • Lowest 2 June, 2026

    57.7 °F

  • Average June

    65.6 °F

  • Highest 4 June, 2026

    76.6 °F

Climate (2021–Present)

San Diego, Brown Field Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    74.3 °F
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