Westborough Weather Forecast

    • 51
    • 60

    Mostly Cloudy

    • 53
    • 63

    Partly Sunny

    • 53
    • 63

    Partly Sunny

    • 53
    • 63

    Partly Sunny

    • 53
    • 67

    Partly Sunny

    • 53
    • 65

    Partly Sunny

    • 53
    • 65

    Mostly Sunny

Today 6 Jul San Francisco Bay Shoreline

Sunny. Highs in the 60s to upper 70s. West Winds 10 to 20 Mph.

Tonight 6 Jul San Francisco Bay Shoreline

Mostly clear in the evening then becoming mostly cloudy. Lows in the mid 50s. West Winds 5 to 15 Mph.

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Westborough Temperature Statistics

July Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 1 July, 2025

    53.1 °F

  • Average July

    59 °F

  • Highest 1 July, 2025

    66 °F

Climate (2020–Present)

San Francisco, San Francisco International Airport (5 miles)

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  • Average Low 2020–2025

    52.2 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    66.7 °F
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