Boston Marathon

Boston, MA, USA · April 19, 2027
partly-cloudy-day53°→ 53° finish·Breezy·Dry
9

Race Day Weather

partly-cloudy-day
53°at start
53° at finish
Breezy
Dry
Your goal
0:00:00

Comfortable temps

Mild 53°F temps at gun time mean comfortable early miles without overheating risk. Light winds shouldn't be a major factor for pacing.

The finish is 24 miles from the start, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 53° and finish around 1:55 PM in 53°; typical start-line conditions say 59° then.

Race day forecast available in 191 days
Along your raceStart line only
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
Start
partly-cloudy-day10
mi 7
partly-cloudy-day10
mi 13
partly-cloudy-day8
Finish
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day9
partly-cloudy-day10
partly-cloudy-day10

Pace Calculator

Distance: 26.2mi
0:00:00
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Race Plan

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True Effort pacing, weather-adjusted mile splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.

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Spectator Guide
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Race Info

The Boston Marathon, established in 1897, is the world's oldest annual marathon and requires qualifying times based on age and gender. Runners start in Hopkinton and finish on Boylston Street, tackling a net downhill course with a mix of flat stretches and the Newton Hills, including Heartbreak Hill. Key landmarks include Wellesley's "Scream Tunnel" and the historic finish in Copley Square. It's the oldest of the seven Abbott World Marathon Majors.

Race Day Tips

logistics

The bus ride to Hopkinton takes over 45 minutes — bring a throwaway blanket for Athletes' Village to stay warm while waiting for your start time.

course

Expect a challenging stretch at Heartbreak Hill around mile 20; it's not just one hill but a series of inclines that can sap your energy if you're not prepared.

strategy

Start conservatively in the first two downhill miles; many runners go out too fast and pay for it later, especially as you approach the Newton Hills.

nutrition

Aid stations typically serve Gatorade Endurance and water; practice with these products during training to avoid stomach issues on race day.

Tips from runner race reports

Read full reviews →

FAQ

When is the 2027 Boston Marathon?

The 2027 Boston Marathon will be held on Monday April 19, 2027.

Is the Boston Marathon a Boston Marathon Qualifier?

Yes, the Boston Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Boston Marathon?

The forecast calls for a high of 60°F and a low of 43°F with a 10% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 27 years of data
Avg Temp
56°F
L:52° H:59°
RunScore
8
Conditions
Rain Freq
15%
4 of 27 yrs
Wind12mph
Dew37°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
44°/52°-
10
2025
clear-day
51°/54°-
8
2024
partly-cloudy-day
57°/70°-
7
2023
cloudy
49°/51°Light
8
2022
clear-day
49°/51°-
8
2021
cloudy
61°/69°-
4
2020
clear-day
69°/77°-
5
2019
partly-cloudy-day
58°/67°-
6
2018
rain
39°/44°Moderate
5
2017
clear-day
68°/74°-
7
2016
partly-cloudy-day
57°/66°-
7
2015
cloudy
43°/45°Light
7
2014
clear-day
52°/65°-
10
2013
partly-cloudy-day
47°/50°-
9
2012
partly-cloudy-day
72°/80°-
4
2011
partly-cloudy-day
46°/57°-
10
2010
clear-day
49°/55°-
10
2009
clear-day
46°/49°-
8
2008
partly-cloudy-day
51°/55°-
9
2007
rain
47°/49°Light
8
2006
partly-cloudy-day
48°/54°-
9
2005
partly-cloudy-day
60°/64°-
8
2004
partly-cloudy-day
64°/82°-
5
2003
partly-cloudy-day
52°/54°-
8
2002
cloudy
52°/55°-
9
2001
partly-cloudy-day
46°/48°-
8
2000
cloudy
41°/44°-
7

Reviews & Race Reports

Race Report
5.0
(7)
Course
5.0
Org
4.5
Crowd
5.0
Value
4.5
Aid
5.0
Swag
4.5
86% would run againHillyBest for: PR Attempt
The vibe

Heartbreak Hill tests your limits. Conserve energy early, embrace the crowd, and fuel wisely for success.

Community sentiment
Positive
from 91 race reports · 59 positive, 30 mixed, 2 negative
Word on the course

Heartbreak Hill — This iconic hill at mile 20 is a true test. Many runners reported feeling gassed by the time they reached it, with some struggling to regain pace afterward. A few noted that the real challenge lies in the buildup, so save some energy for this critical point.

Crowd Energy — The crowd support is unparalleled, especially in the final miles. Runners felt uplifted by the cheering, particularly as they approached Kenmore Square. Almost every report highlights the boost from the crowd, even in tough moments.

Pacing Strategy — A conservative start is crucial. Many runners who went out too fast struggled later on, especially during the Newton Hills. Those who held back early often found themselves finishing strong, with several achieving PRs thanks to a negative split strategy.

Aid Stations and Fuel — Aid stations are plentiful, but be prepared for some congestion early on. Many runners recommend grabbing water and Gatorade at every stop, especially in the later miles. A few also mentioned the importance of cooling down with water to combat fatigue and heat during the race.

Based on runner race reports
Gustavo R.
2026
Would run againHilly10+ racesFull race report
DR
2026
Would run againSceneryFirst race at this distance

A classic bucket list item

2026·2:57:00·positive
Would run againPR Attempt

First sub-3:00 marathon in perfect weather conditions

Anyways — it was a great Boston! My first time breaking 3:00, handily and somewhat unexpectedly. Context: 40F, 5’10”, 60 KG, previous PR 3:04 from Boston 2025, I'd hoped for a modest PR today en route to a sub-3 goal at Chicago in October.

2025·2:48:00·positive
Would run again

Enjoyed beer stations while pacing through the marathon

Go time! The entire running goal was "feel easy, minimize recovery" so I worked out with my coach that I'd run z2 into the hills of Newton, take it really easy on the way up, then basically pull the plug and jog it in. More importantly, I was keeping a close eye out for "beer stations" that I noticed in years prior but never partook in.. well I found most of them! There was one around mile 3, one at 5, and one around 10 with a huge sign saying "beer tent" lol.

2025·2:48:00·positive
Would run again

Enjoyed beer stations while pacing through the marathon

Go time! The entire running goal was "feel easy, minimize recovery" so I worked out with my coach that I'd run z2 into the hills of Newton, take it really easy on the way up, then basically pull the plug and jog it in. More importantly, I was keeping a close eye out for "beer stations" that I noticed in years prior but never partook in.. well I found most of them! There was one around mile 3, one at 5, and one around 10 with a huge sign saying "beer tent" lol.

Read all 98 Boston Marathon Race Reviews →