Westborough Weather Forecast

    • 51
    • 62

    Mostly Cloudy

    • 52
    • 63

    Partly Sunny

    • 52
    • 67

    Mostly Sunny

    • 52
    • 67

    Partly Sunny

    • 54
    • 78

    Partly Sunny

    • 54
    • 76

    Mostly Sunny

Today 7 May San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Highs in the mid 60s to lower 70s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 7 May San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. West Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Westborough Temperature Statistics

May Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 4 May, 2026

    53.1 °F

  • Average May

    58.8 °F

  • Highest 3 May, 2026

    65.6 °F

Climate (2021–Present)

San Francisco, San Francisco International Airport (5 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    66.7 °F
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