Westborough Weather Forecast

    • 56
    • 63

    Mostly Cloudy

    • 56
    • 63

    Mostly Cloudy

    • 55
    • 63

    Mostly Cloudy

    • 56
    • 63

    Mostly Cloudy

    • 56
    • 63

    Mostly Cloudy

    • 57
    • 65

    Mostly Cloudy

Today 13 Aug San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming partly cloudy. Highs in the upper 60s to mid 70s. Southwest Winds 10 to 20 Mph.

Tonight 13 Aug San Francisco Bay Shoreline

Mostly cloudy. Lows around 60. Southwest Winds 5 to 15 Mph.

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Westborough Temperature Statistics

August Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 3 August, 2026

    56.6 °F

  • Average August

    65.3 °F

  • Highest 2 August, 2026

    80.7 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (5 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    66.8 °F
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