Westborough Weather Forecast

    • 42
    • 57

    Mostly Cloudy

    • 43
    • 58

    Increasing Clouds

    • 44
    • 57

    Mostly Sunny

    • 45
    • 61

    Mostly Sunny

    • 47
    • 62

    Mostly Sunny

    • 48
    • 63

    Mostly Sunny

    • 48
    • 63

    Mostly Sunny

Today 10 Jan San Francisco Bay Shoreline

Partly cloudy. Highs in the upper 50s. Northeast Winds around 5 Mph.

Tonight 10 Jan San Francisco Bay Shoreline

Mostly cloudy. Lows in the mid 30s to lower 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

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Westborough Temperature Statistics

January Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 8 January, 2026

    46.9 °F

  • Average January

    54.6 °F

  • Highest 3 January, 2026

    63 °F

Climate (2021–Present)

San Francisco, San Francisco International Airport (5 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    66.5 °F
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