On October 17, 2007, two cases of MRSA-strain staph infections were reported at Newtown High School.

The school put precautions in place to protect students from this potentially fatal bacterial infection.

Connecticut Governor Dan Malloy offered some thoughts prior to the President's remarks.

[11] The Nighthawks participate in cheerleading, cross country, field hockey, football, soccer, swimming, volleyball, basketball, ice hockey, indoor track, wrestling, baseball, golf, lacrosse, softball, tennis, and track.

In 1996, local Connecticut students, all native American and actively involved with their culture, visited Newtown High School and explained that the pep rally and game activities—the war chants, tomahawk chants, the Indian costumes and dancing—trivialize religious customs.

Representatives from other local tribes explained that mascots should not depict a race or ethnic group because it is dehumanizing.

Newtown was ranked second in the state at the end of the year, behind St. Joseph, who went undefeated, beating every team by a combined 44.7 points.

In 2017, the marching band won the USBands Group IV Open New England States Championship and the USBands Group IV Open National Championship with the captions of "Best Overall Effect" and "Best Percussion" with their show "Dystopia".

In 2018, the marching band took third place at the USBands Group IV Open National Championship.