First Slough Weather Forecast

    • 51
    • 75

    Becoming Sunny

    • 50
    • 71

    Mostly Sunny

    • 51
    • 66

    Mostly Cloudy

    • 49
    • 62

    Partly Sunny

    • 48
    • 67

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

Today 30 Apr San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Highs in the 60s to upper 70s. Light Winds. Becoming northwest 5 to 15 Mph in the afternoon.

Tonight 30 Apr San Francisco Bay Shoreline

Mostly clear. Lows in the lower 50s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

First Slough Temperature Statistics

April Temperature

San Carlos Airport (2.5 miles)

  • Lowest 3 April, 2025

    42.8 °F

  • Average April

    55.3 °F

  • Highest 9 April, 2025

    77 °F

Climate (2020–Present)

San Carlos Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    51.3 °F

  • Average 2020–2025

    56.6 °F

  • Average High 2020–2025

    68.4 °F
Get WillyWeather+ to remove ads