Foster City Weather Forecast

    • 55
    • 74

    Partly Sunny

    • 55
    • 74

    Partly Sunny

    • 56
    • 74

    Partly Sunny

    • 56
    • 73

    Partly Sunny

    • 55
    • 72

    Partly Sunny

Today 1 Jul San Francisco Bay Shoreline

Sunny. Highs in the 70s. South Winds 5 to 10 Mph. Becoming west 10 to 20 Mph in the afternoon.

Tonight 1 Jul San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. Southwest Winds 10 to 20 Mph.

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Foster City Temperature Statistics

July Temperature

San Carlos Airport (3.1 miles)

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Climate (2021–2026)

San Carlos Airport (3.1 miles)

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  • Average Low 2021–2026

    51.7 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    68.3 °F
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