Promoted to lance corporal in March 1918, Weathers fought with his battalion during the German spring offensive, but was gassed in May and did not return to his unit until the following month.

Promoted to temporary corporal, he was mortally wounded in the head by a shell on 29 September during the Battle of St Quentin Canal, and died soon after, unaware that he was to receive the Victoria Cross, which was not announced until late December.

Until 2016, his Victoria Cross was in private hands, but in that year it was purchased at auction and donated to the Australian War Memorial in Canberra, where it is displayed in the Hall of Valour.

[1][7] The 43rd Battalion embarked on HMAT A19 (formerly SS Afric) in June 1916, and after a brief stop in the Middle East and transit through France, spent the rest of the year training at Larkhill on the Salisbury Plain in southern England.

[12] The 3rd Division spent the winter of 1917–1918 rotating through the front lines in the Messines sector of the Flanders region of Belgium, largely improving the trenches against an expected German offensive in the spring.

[13] Weathers was promoted to lance corporal on 21 March 1918,[9] and a week later his battalion helped blunt the German spring offensive, taking up defensive positions between the Ancre and the Somme rivers west of Morlancourt.

[14] In late May he required medical treatment following a gas attack near Villers-Bretonneux that caused 230 casualties among the 43rd, and Weathers did not return to duty until mid-June.

[18] The 43rd played a supporting role in the first phase of the Battle of Amiens on 8 August, which marked the beginning of the Hundred Days Offensive to drive the Germans back to the Hindenburg Line of fortifications.

Regardless of personal danger, he mounted the enemy parapet and bombed the trench, and, with the support of his comrades, captured 180 prisoners and three machine guns.

His valour and determination resulted in the successful capture of the final objective, and saved the lives of many of his comrades.When Weathers returned to his comrades, his uniform was covered in mud, he had blood running down his face, and he had five days' stubble on his chin.

[29] Until 2016, his Victoria Cross was in private hands,[22] but in that year it was put up for auction in Sydney, fetching a world record price for an individual medal.