Westborough Weather Forecast

    • 55
    • 66

    Decreasing Clouds

    • 54
    • 65

    Mostly Cloudy

    • 52
    • 64

    Mostly Cloudy

    • 53
    • 63

    Mostly Cloudy

    • 54
    • 65

    Mostly Cloudy

    • 54
    • 66

    Patchy Fog

Today 18 Jun San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Breezy. Highs in the 70s. Southwest Winds 5 to 10 Mph increasing to west 20 to 30 Mph in the afternoon.

Tonight 18 Jun San Francisco Bay Shoreline

Mostly cloudy. Lows in the upper 50s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Westborough Temperature Statistics

June Temperature

San Francisco, San Francisco International Airport (5 miles)

  • Lowest 7 June, 2026

    51.7 °F

  • Average June

    63.4 °F

  • Highest 11 June, 2026

    91.7 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    66.8 °F
Get WillyWeather+ to remove ads