Delaware Marathon

Wilmington, DE, USA · April 18, 2027
partly-cloudy-day49°·63° high·Light·Dry
9
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Race Day Weather

partly-cloudy-day
49°at start
64° high
Breezy
Dry

Cool start, warming trend ahead

Runners will face a starting temperature of 49°F, rising to 63°F by the finish. Winds will be from the SW at 8 mph, with gusts up to 24 mph. With moderate humidity at 53%, it's advisable to start conservatively and adjust pace as temperatures rise.

Race day forecast available in 240 days
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Distance: 26.2mi
0:00:00
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Race Info

The Delaware Marathon Running Festival is an excellent assembly of races for all ages and skill sets. Runners enjoy the best of Wilmington, from the majestic views along the riverfront and through downtown (which could be considered the financial center of the United States). The marathon is challenging, yet BQ-enabling and includes the scenic Jack Markell Trail. The half covers first 13 miles of the full marathon and the 10K and 5K run on the same day amplifies the race day buzz. All include access to brilliant post-race festivities in a beautiful park setting. Source

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FAQ

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When is the 2027 Delaware Marathon?

The 2027 Delaware Marathon will be held on Sunday April 18, 2027.

Is the Delaware Marathon a Boston Marathon Qualifier?

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

What is the time limit for the Delaware Marathon?

The time limit for the Delaware Marathon is 6 hours.

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

The forecast calls for a high of 67°F and a low of 50°F with a 7% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 22 years of data
Avg Temp
66°F
L:54° H:67°
RunScore
7
Conditions
Rain Freq
23%
5 of 22 yrs
Wind12mph
Dew47°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2026 Delaware Marathon

Partly cloudy throughout the day with afternoon rain.

2026
cloudy
47°/55°Light
6

2025 Delaware Marathon

Cloudy skies throughout the day.

2025
fog
49°/55°-
8

2024 Delaware Marathon

Clear conditions throughout the day.

2024
clear-day
40°/50°-
8

2023 Delaware Marathon

Partly cloudy throughout the day with early morning rain.

2023
clear-day
54°/66°-
8

2022 Delaware Marathon

Clear conditions throughout the day.

2022
clear-day
54°/72°-
8

2021 Delaware Marathon

Partly cloudy throughout the day.

2021
clear-day
42°/65°-
8

2019 Delaware Marathon

Partly cloudy throughout the day with morning rain.

2019
cloudy
56°/63°Light
8

2018 Delaware Marathon

Clearing in the afternoon with late afternoon rain.

2018
cloudy
49°/67°-
8

2017 Delaware Marathon

Partly cloudy throughout the day.

2017
clear-day
48°/69°-
9

2016 Delaware Marathon

Clearing in the afternoon with morning rain.

2016
rain
53°/69°Light
7

2015 Delaware Marathon

Partly cloudy throughout the day with afternoon rain.

2015
cloudy
64°/76°-
8

2014 Delaware Marathon

Clear conditions throughout the day with early morning rain.

2014
clear-day
61°/75°-
8

2013 Delaware Marathon

Clearing in the afternoon with early morning rain.

2013
partly-cloudy-day
57°/64°-
8

2012 Delaware Marathon

Clear conditions throughout the day.

2012
clear-day
58°/77°-
8

2011 Delaware Marathon

Partly cloudy throughout the day with rain.

2011
cloudy
63°/70°-
8

2010 Delaware Marathon

Partly cloudy throughout the day.

2010
partly-cloudy-day
57°/70°-
8

2009 Delaware Marathon

Partly cloudy throughout the day with rain clearing later.

2009
rain
55°/62°Light
7

2008 Delaware Marathon

Becoming cloudy in the afternoon with rain.

2008
clear-day
55°/66°Light
8

2007 Delaware Marathon

Partly cloudy throughout the day.

2007
clear-day
57°/71°-
8

2006 Delaware Marathon

Clear conditions throughout the day.

2006
clear-day
47°/70°-
8

2005 Delaware Marathon

Partly cloudy throughout the day with early morning rain.

2005
partly-cloudy-day
63°/74°-
8

2004 Delaware Marathon

Partly cloudy throughout the day with early morning rain.

2004
partly-cloudy-day
66°/76°-
8
Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

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