Lake Merced Weather Forecast

    • 55
    • 65

    Mostly Cloudy

    • 58
    • 70

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 54
    • 66

    Mostly Cloudy

    • 56
    • 67

    Mostly Cloudy

    • 56
    • 66

    Mostly Cloudy

    • 55
    • 65

    Mostly Cloudy

Today 19 Sep San Francisco

Partly cloudy. Highs in the upper 50s to lower 70s. West Winds 10 to 20 Mph.

Tonight 19 Sep San Francisco

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. West Winds 10 to 20 Mph. Becoming northwest 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Merced Temperature Statistics

September Temperature

San Francisco, San Francisco International Airport (9.3 miles)

  • Lowest 5 September, 2021

    53.1 °F

  • Average September

    61.8 °F

  • Highest 6 September, 2021

    78.1 °F

Climate (2010–Present)

San Francisco, San Francisco International Airport (9.3 miles)

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  • Average Low 2010–Present

    52.5 °F

  • Average 2010–Present

    58.5 °F

  • Average High 2010–Present

    66.7 °F
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