2027 Boston Marathon Second Chance Cut-off Time Prediction Contest
Second Chance Contest Now Open

Predict the 2027 Boston Cut-off Time

Enter our Second Chance Contest for a chance to win a $25 Digital Visa Gift Card.

Everyone can enter — even if you submitted a prediction in the original contest.

ENTER THE SECOND CHANCE CONTEST

Entries accepted until the B.A.A. announces the 2027 Boston Marathon qualifying cut-off time.


Best Boston Marathon Qualifiers for 2026

Best Boston Marathon Qualifiers

It's here! Our annual list of the year's
best marathons to help you qualify for the Boston Marathon.

2026 IS HERE!


Marathon Pace Bands

Marathon Pace Bands

Run the Right Pace in Your Next Marathon

Nearly 500 marathon courses.
Ships same or Next Day



Historical weather

Historical Race Day Weather for the Napa Valley Marathon

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

Weather Averages for Last 15 Years

Race day snapshot
Mostly Cloudy
Mostly Cloudy
Most common race morning weather across the last 15 years.
Start Line Conditions
Start Temp 45°F 7°C
Start Humidity 88% Humidity
Wind W 4 mph
Race day high 60°F 16°C
Race day low 43°F 6°C
PR Score 99.49 Weather-influenced race day scoring
Course Score 99.75 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.

March 1, 2026

Race day snapshot
Partially cloudy
Partially cloudy
Start Line Conditions
Start Temp 53°F 12°C
Start Humidity 100% Humidity
Wind SSW 1 mph Wind
Race day high 63°F 17°C
Race day low 53°F 12°C
PR Score 98.67 Normal score 99.75
Course Score 99.75 Course-only Score
Marathon Pace BandsLive Pace Band phone preview

Course-adjusted pacing

Want to run your best Napa Valley Marathon?

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

Build your Napa Valley Marathon pace band

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

March 2, 2025

Race day snapshot
Rain, Partially cloudy
Start Line Conditions
Start Temp 48°F 9°C
Start Humidity 87% Humidity
Wind WSW 5 mph Wind
Race day high 56°F 13°C
Race day low 45°F 7°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 3, 2024

Race day snapshot
Partially cloudy
Partially cloudy
Start Line Conditions
Start Temp 40°F 4°C
Start Humidity 90% Humidity
Wind SSE 3 mph Wind
Race day high 53°F 12°C
Race day low 38°F 3°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 5, 2023

Race day snapshot
Partially cloudy
Partially cloudy
Start Line Conditions
Start Temp 40°F 4°C
Start Humidity 92% Humidity
Wind W 13 mph Wind
Race day high 49°F 9°C
Race day low 38°F 3°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 6, 2022

Race day snapshot
Clear
Clear
Start Line Conditions
Start Temp 38°F 3°C
Start Humidity 78% Humidity
Wind N 4 mph Wind
Race day high 65°F 18°C
Race day low 37°F 3°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 1, 2020

Race day snapshot
Overcast
Overcast
Start Line Conditions
Start Temp 45°F 7°C
Start Humidity 56% Humidity
Wind NNW 3 mph Wind
Race day high 60°F 16°C
Race day low 43°F 6°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 3, 2019

Race day snapshot
Mostly Cloudy
Mostly Cloudy
Start Line Conditions
Start Temp 50°F 10°C
Start Humidity 94% Humidity
Wind W 1 mph Wind
Race day high 55°F 13°C
Race day low 50°F 10°C
PR Score 99.44 Normal score 99.75
Course Score 99.75 Course-only Score

March 4, 2018

Race day snapshot
Clear
Clear
Start Line Conditions
Start Temp 34°F 1°C
Start Humidity 88% Humidity
Wind NNW 3 mph Wind
Race day high 56°F 13°C
Race day low 33°F 1°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 5, 2017

Race day snapshot
Overcast
Overcast
Start Line Conditions
Start Temp 43°F 6°C
Start Humidity 90% Humidity
Wind WSW 4 mph Wind
Race day high 53°F 12°C
Race day low 38°F 3°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 6, 2016

Race day snapshot
Mostly Cloudy
Mostly Cloudy
Start Line Conditions
Start Temp 49°F 9°C
Start Humidity 96% Humidity
Wind NW 2 mph Wind
Race day high 62°F 17°C
Race day low 49°F 9°C
PR Score 99.36 Normal score 99.75
Course Score 99.75 Course-only Score

March 1, 2015

Race day snapshot
Clear
Clear
Start Line Conditions
Start Temp 42°F 6°C
Start Humidity 83% Humidity
Wind SW 3 mph Wind
Race day high 69°F 21°C
Race day low 42°F 6°C
PR Score 99.75 Normal score 99.75
Course Score 99.75 Course-only Score

March 2, 2014

Race day snapshot
Mostly Cloudy
Mostly Cloudy
Start Line Conditions
Start Temp 48°F 9°C
Start Humidity 96% Humidity
Wind E 3 mph Wind
Race day high 63°F 17°C
Race day low 47°F 8°C
PR Score 99.07 Normal score 99.75
Course Score 99.75 Course-only Score

March 3, 2013

Race day snapshot
Mostly Cloudy
Mostly Cloudy
Start Line Conditions
Start Temp 51°F 11°C
Start Humidity 86% Humidity
Wind W 8 mph Wind
Race day high 66°F 19°C
Race day low 42°F 6°C
PR Score 99.30 Normal score 99.75
Course Score 99.75 Course-only Score

March 4, 2012

Race day snapshot
0
Start Line Conditions
Start Temp 37°F 3°C
Start Humidity 93% Humidity
Wind No Wind Wind
Race day high 73°F 23°C
Race day low 35°F 2°C
PR Score 99.70 Normal score 99.75
Course Score 99.75 Course-only Score

March 6, 2011

Race day snapshot
0
Start Line Conditions
Start Temp 54°F 12°C
Start Humidity 97% Humidity
Wind SE 5 mph Wind
Race day high 57°F 14°C
Race day low 52°F 11°C
PR Score 98.86 Normal score 99.75
Course Score 99.75 Course-only Score