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Boston Cut-off Time Prediction Contest

Predict the 2027 Boston Cut-off Time and win a great prize and bragging rights among all your running friends.

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Historical weather

Historical Race Day Weather for the Fox Valley Marathon

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

Weather Averages for Last 16 Years

Race day snapshot

Partially cloudy

Most common race morning weather across the last 16 years.

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 91% Humidity

Wind N 6 mph

Race day high 74°F 23°C

Race day low 58°F 14°C

PR Score 96.08 Weather-influenced race day scoring

Course Score 99.2 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.

September 20, 2026

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 63°F 17°C

Start Humidity 91% Humidity

Wind NE 9 mph Wind

Race day high 70°F 21°C

Race day low 63°F 17°C

PR Score 96.96 Normal score 97.58

Course Score 98.92 Course-only Score

Boston Qualifying Cut-off Time Prediction Contest