Westborough Weather Forecast

    • 45
    • 57

    Partly Sunny

    • 44
    • 61

    Mostly Sunny

    • 46
    • 59

    Mostly Cloudy

    • 45
    • 61

    Partly Sunny

    • 49
    • 61

    Chance Rain

    • 48
    • 60

    Chance Rain

Today 23 Jan San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 50s. Light Winds becoming northwest around 5 Mph in the afternoon.

Tonight 23 Jan San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Patchy fog. Lows in the lower 40s. Northwest Winds up to 5 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Westborough Temperature Statistics

January Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 10 January, 2026

    41 °F

  • Average January

    52.8 °F

  • Highest 16 January, 2026

    69.1 °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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