Weather in Waltham, Massachusetts, USATime/General Weather Time Zone DST Changes Sun & Moon Weather TodayWeather Hourly14 Day ForecastYesterday/Past WeatherClimate (Averages) Now 12 °C Sunny. Feels Like: 10 °CForecast: 17 / 9 °CWind: 22 km/h ↑ from Northwest Location: Hanscom Field ...