Westborough Weather Forecast

    • 48
    • 63

    Mostly Sunny

    • 48
    • 61

    Partly Sunny

    • 50
    • 66

    Mostly Sunny

    • 51
    • 69

    Mostly Sunny

    • 51
    • 68

    Mostly Sunny

    • 53
    • 68

    Partly Sunny

Today 9 Mar San Francisco Bay Shoreline

Sunny. Patchy fog in the morning. Highs in the mid 60s to lower 70s. Northwest Winds up to 5 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 9 Mar San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 40s. Southwest Winds 5 to 15 Mph.

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Westborough Temperature Statistics

March Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 5 March, 2026

    46.9 °F

  • Average March

    58.5 °F

  • Highest 7 March, 2026

    73 °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

    58.4 °F

  • Average High 2021–2026

    66.5 °F
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