Westborough Weather Forecast

    • 57
    • 69

    Increasing Clouds

    • 55
    • 63

    Mostly Cloudy

    • 55
    • 62

    Mostly Cloudy

    • 54
    • 62

    Mostly Cloudy

    • 54
    • 60

    Mostly Cloudy

    • 55
    • 62

    Mostly Cloudy

Today 27 Aug San Francisco Bay Shoreline

Partly cloudy in the morning then becoming mostly cloudy. A slight chance of rain. Highs in the mid 70s to lower 80s. Northwest Winds 10 to 20 Mph.

Tonight 27 Aug San Francisco Bay Shoreline

Mostly cloudy. A slight chance of rain. Lows in the lower 60s. West Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Westborough Temperature Statistics

August Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 3 August, 2026

    56.6 °F

  • Average August

    65.1 °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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