Foster City Weather Forecast

    • 36
    • 63

    Becoming Sunny

    • 43
    • 70

    Partly Sunny

    • 47
    • 69

    Mostly Cloudy

    • 47
    • 62

    Slight Chance Rain Showers

    • 52
    • 74

    Partly Sunny

    • 46
    • 77

    Mostly Sunny

Today 25 May Dickinson

Partly cloudy. Highs in the mid 60s. North Winds 5 to 10 Mph.

Tonight 25 May Dickinson

Clear. Lows around 36. Northeast Winds 5 to 10 Mph, becoming light northwest after midnight.

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Foster City Temperature Statistics

May Temperature

Iron Mountain / Kingsford, Ford Airport (19.9 miles)

  • Lowest 8 May, 2025

    28.9 °F

  • Average May

    53.4 °F

  • Highest 12 May, 2025

    87.7 °F

Climate (2020–Present)

Iron Mountain / Kingsford, Ford Airport (19.9 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    44.3 °F

  • Average High 2020–2025

    54.9 °F
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