New Hampshire Half Marathon
Race Day Weather
Comfortable temps
Mild 55°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 65°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for New Hampshire Half Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized New Hampshire Half Marathon race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
The New Hampshire Half Marathon covers the second half of the marathon course along the west shore of Newfound Lake. Runners ride a bus from Bristol to a start just beyond Sculptured Rocks in Groton, then run south beside the lake through rolling New England countryside. It is held on the Saturday of race weekend during peak fall foliage.