First Slough Weather Forecast

    • 44
    • 67

    Partly Sunny

    • 48
    • 68

    Partly Sunny

    • 49
    • 69

    Partly Sunny

    • 49
    • 69

    Mostly Cloudy

    • 46
    • 68

    Mostly Sunny

    • 49
    • 73

    Partly Sunny

Today 21 Feb San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the mid 60s. Northeast Winds up to 5 Mph. Becoming northwest in the afternoon.

Tonight 21 Feb San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s. Northwest Winds 5 to 10 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

First Slough Temperature Statistics

February Temperature

San Carlos Airport (2.5 miles)

  • Lowest 10 February, 2025

    35.6 °F

  • Average February

    50.1 °F

  • Highest 1 February, 2025

    62.6 °F

Climate (2020–Present)

San Carlos Airport (2.5 miles)

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  • Average Low 2020–2025

    51.3 °F

  • Average 2020–2025

    56.5 °F

  • Average High 2020–2025

    68.4 °F
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