Lake Merced Weather Forecast

    • 58
    • 73

    Increasing Clouds

    • 61
    • 75

    Mostly Cloudy

    • 64
    • 81

    Mostly Cloudy

    • 61
    • 74

    Partly Sunny

    • 59
    • 70

    Mostly Cloudy

    • 58
    • 68

    Mostly Cloudy

Today 7 Sep San Francisco

Partly cloudy in the morning then becoming sunny. Highs in the 60s to upper 70s. Southeast Winds around 5 Mph. Becoming west 10 to 15 Mph in the afternoon.

Tonight 7 Sep San Francisco

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. West Winds 10 to 15 Mph. Becoming southwest up to 5 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 4 September, 2026

    58.6 °F

  • Average September

    66.2 °F

  • Highest 2 September, 2026

    73.7 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (9.3 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    66.8 °F
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