Watertown Weather Forecast

    • 56
    • 72

    Chance Rain Showers

    • 64
    • 84

    Increasing Clouds

    • 60
    • 85

    Rain Showers

    • 52
    • 71

    Rain Showers

    • 50
    • 68

    Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

    • 52
    • 70

    Partly Sunny

Today 25 May Southeast Middlesex

Mostly cloudy. Areas of fog. Not as cool with Highs in the lower 70s. West Winds 5 to 10 Mph.

Tonight 25 May Southeast Middlesex

Mostly clear this Evening, then becoming partly cloudy. Areas of fog after midnight. Lows in the mid 50s. West Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Watertown Temperature Statistics

May Temperature

Laurence G Hanscom Field Airport (8.7 miles)

  • Lowest 9 May, 2026

    34 °F

  • Average May

    58.3 °F

  • Highest 19 May, 2026

    95 °F

Climate (2021–Present)

Laurence G Hanscom Field Airport (8.7 miles)

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

  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.6 °F
Get WillyWeather+ to remove ads