The weather during the Battle of Gettysburg was Hot and dry.

The battle occurred from July 1 to July 3, 1863, amidst the sweltering summer heat of Pennsylvania. Temperatures frequently soared into the 90s Fahrenheit (over 30 degrees Celsius), intensifying the difficulties experienced by soldiers on both sides. The arid conditions led to dust and discomfort, hindering troop movements and complicating medical care for the injured. The stifling heat further heightened the challenges of combat, affecting troop performance and morale throughout the three-day engagement.