Boston Marathon

Boston, MA, USA • April 20, 2026

Course Explorer

Race Day Weather

50°

56° high

Breezy

Dry

Cool temps, steady tailwinds

Runners will face a temperature range from 52°F to 56°F, with a maximum wind speed of 15 mph from the SSW, providing a tailwind in key stretches. With average humidity at 52% and a dew point of 35°F, conditions are favorable for performance. Runners should take advantage of the tailwinds between miles 1-5 and 12-17, while adjusting their pacing during the crosswinds on miles 6-11 and 13-27.

Race day forecast available in 26 days

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Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

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Weather Adj.

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Common Goals:

The Boston Marathon is an annual marathon race hosted by several cities and towns in greater Boston in eastern Massachusetts, United States. It is traditionally held on Patriots' Day, the third Monday of April. Begun in 1897, the event was inspired by the success of the first marathon competition in the 1896 Summer Olympics. The Boston Marathon is the world's oldest annual marathon and ranks as one of the world's best-known road racing events. It is one of six World Marathon Majors. Its course runs from Hopkinton in southern Middlesex County to Copley Square in Boston. Wikipedia

FAQ

When is the 2026 Boston Marathon?

The 2026 Boston Marathon will be held on Monday April 20, 2026.

Is the Boston Marathon a Boston Marathon Qualifier?

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

Historical Weather

Based on 26 years of data

Avg Temp

58°F

L:53° H:60°

RunScore

Conditions

Rain Freq

19%

5 of 26 yrs

Wind14mph

Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Boston Marathon Partly cloudy throughout the day. 2025	50°/55°	-	26°
2024 Boston Marathon Partly cloudy throughout the day with late afternoon rain. 2024	58°/73°	-	44°
2023 Boston Marathon Cloudy skies throughout the day with rain. 2023	49°/51°	Light	49°
2022 Boston Marathon Partly cloudy throughout the day. 2022	49°/52°	-	30°
2021 Boston Marathon Partly cloudy throughout the day with morning rain. 2021	65°/70°	-	60°
2020 Boston Marathon Partly cloudy throughout the day. 2020	70°/78°	-	45°
2019 Boston Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2019	58°/69°	Light	53°
2018 Boston Marathon Cloudy skies throughout the day with a chance of rain or snow throughout the day. 2018	41°/50°	Moderate	44°
2017 Boston Marathon Partly cloudy throughout the day. 2017	69°/74°	-	35°
2016 Boston Marathon Partly cloudy throughout the day. 2016	55°/66°	-	35°
2015 Boston Marathon Partly cloudy throughout the day with rain. 2015	43°/46°	Light	41°
2014 Boston Marathon Partly cloudy throughout the day. 2014	52°/68°	-	27°
2013 Boston Marathon Partly cloudy throughout the day. 2013	49°/52°	-	33°
2012 Boston Marathon Partly cloudy throughout the day with early morning rain. 2012	73°/86°	-	54°
2011 Boston Marathon Partly cloudy throughout the day with early morning rain. 2011	48°/61°	-	24°
2010 Boston Marathon Becoming cloudy in the afternoon with early morning rain. 2010	50°/60°	-	33°
2009 Boston Marathon Partly cloudy throughout the day with late afternoon rain. 2009	45°/49°	-	32°
2008 Boston Marathon Partly cloudy throughout the day. 2008	50°/57°	-	43°
2007 Boston Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2007	44°/49°	Light	41°
2006 Boston Marathon Partly cloudy throughout the day. 2006	48°/55°	-	35°
2005 Boston Marathon Partly cloudy throughout the day. 2005	62°/65°	-	23°
2004 Boston Marathon Partly cloudy throughout the day. 2004	61°/84°	-	49°
2003 Boston Marathon Partly cloudy throughout the day. 2003	51°/59°	-	35°
2002 Boston Marathon Partly cloudy throughout the day with rain clearing later. 2002	49°/52°	-	49°
2001 Boston Marathon Partly cloudy throughout the day. 2001	46°/50°	-	32°
2000 Boston Marathon Cloudy skies throughout the day with late afternoon rain. 2000	40°/44°	-	29°