San Francisco Bay - Guadalupe Slough Entrance Weather Forecast

    • 58
    • 80

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 60
    • 82

    Mostly Sunny

    • 61
    • 82

    Partly Sunny

    • 62
    • 83

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

Today 29 Sep San Francisco Bay Shoreline

Sunny. Highs in the upper 70s to mid 80s. West Winds up to 5 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 29 Sep San Francisco Bay Shoreline

Mostly clear. Lows in the upper 50s. Southwest Winds 10 to 20 Mph. Becoming south 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Guadalupe Slough Entrance Temperature Statistics

September Temperature

Palo Alto Airport (4.3 miles)

  • Lowest 26 September, 2026

    50 °F

  • Average September

    67.5 °F

  • Highest 9 September, 2026

    93.2 °F

Climate (2021–2026)

Palo Alto Airport (4.3 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    60.7 °F

  • Average High 2021–2026

    67.4 °F
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