Westborough Weather Forecast

    • 52
    • 65

    Partly Sunny

    • 53
    • 68

    Mostly Sunny

    • 50
    • 64

    Breezy

    • 54
    • 65

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 53
    • 78

    Mostly Sunny

Today 14 May San Francisco Bay Shoreline

Sunny. Highs in the 70s. Southwest Winds up to 5 Mph increasing to west 10 to 20 Mph in the afternoon.

Tonight 14 May San Francisco Bay Shoreline

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

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  • Temperature Forecast NOAA

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Westborough Temperature Statistics

May Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 11 May, 2026

    50 °F

  • Average May

    58.9 °F

  • Highest 11 May, 2026

    69.1 °F

Climate (2021–Present)

San Francisco, San Francisco International Airport (5 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    66.7 °F
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