Harpoon 5 Miler
Race Day Weather
Cool start, slight warming trend
Runners will face a start temperature of 57°F rising to 62°F by the finish. Winds from the SW at 9 mph, with gusts up to 19 mph, may provide some challenges. With humidity at 67%, pacing adjustments may be necessary to maintain performance, especially in the later stages.
Pace Calculator
Get forecast alerts for Harpoon 5 Miler
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
The Harpoon 5-Miler in South Boston is a vibrant annual event that combines community spirit with a commitment to ALS research. Runners traverse the lively streets of South Boston, starting and finishing near the Harpoon Brewery on Northern Avenue. The course is known for its flat terrain, making it accessible for participants of all levels. After the race, the celebration continues at the brewery with refreshing beverages, live music, and a lively atmosphere, all while supporting the fight against ALS.