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Best Boston Marathon Qualifiers for 2026

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Marathon Pace Bands

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Historical weather

Historical Race Day Weather for the 3 Bridges Marathon

See historical race day weather for the 3 Bridges Marathon, including start temperature, humidity, wind, race day temperatures, PR score, and course score.

Weather Averages for Last 1 Years

Race day snapshot
Partially cloudy
Partially cloudy
Most common race morning weather across the last 1 years.
Start Line Conditions
Start Temp 31°F -1°C
Start Humidity 98% Humidity
Wind N 0 mph
Race day high 42°F 6°C
Race day low 31°F -1°C
PR Score 99.66 Weather-influenced race day scoring
Course Score 99.66 Course-only Score

Race Day Weather by Year

Most recent years appear first so you can quickly compare start conditions, temperatures, wind, and scores across different editions of the race.

December 6, 2025

Race day snapshot
Partially cloudy
Partially cloudy
Start Line Conditions
Start Temp 31°F -1°C
Start Humidity 98% Humidity
Wind No Wind Wind
Race day high 42°F 6°C
Race day low 31°F -1°C
PR Score 99.66 Normal score 99.66
Course Score 99.66 Course-only Score
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Course-adjusted pacing

Want to run your best 3 Bridges Marathon?

3 Bridges Marathon Pace Bands are adjusted for the specific terrain of the course, your goal time, and pacing strategy.

Build your 3 Bridges Marathon pace band

Easy to useCourse-aware pacing, goal-time based splits, and a cleaner race day plan.See all pace bands