St. Luke's Delaware & Lehigh (D&L) Heritage Marathon

Northampton, PA, USA · November 15, 2026
partly-cloudy-day42°·54° high·Light·Dry
8
Weather
Course
Race Info
FAQ
History

Race Day Weather

partly-cloudy-day
42°at start
54° high
Light
Dry

Cool morning, gradual warming

Runners will face a starting temperature of 41°F, rising to 54°F by the finish. Winds from the SW at 7 mph may gust up to 20 mph, while humidity sits at 62% with a dew point of 36°F. Given the cool conditions, runners should maintain a steady pace and stay hydrated, especially if humidity rises.

Race day forecast available in 175 days
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Race Info

Both the marathon and half marathon use the D&L Trail for a majority of their courses. The trail follows the Lehigh River for a gentle net elevation drop with fine gravel or pavement depending on the section. Participants can expect a beautiful trail, joint-friendly terrain, and crisp autumn temperatures. Source

Website
Area Map

Course Map

Course Map Unavailable

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FAQ

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When is the 2026 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon?

The 2026 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon will be held on Sunday November 15, 2026.

Is the St. Luke's Delaware & Lehigh (D&L) Heritage Marathon a Boston Marathon Qualifier?

Yes, the St. Luke's Delaware & Lehigh (D&L) Heritage Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon?

The forecast calls for a high of 54°F and a low of 39°F with a 12% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
52°F
L:39° H:53°
RunScore
8
Conditions
Rain Freq
33%
1 of 3 yrs
Wind5mph
Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2025 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon

Partly cloudy throughout the day with rain.

2025
partly-cloudy-day
49°/60°Light
8

2024 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon

Partly cloudy throughout the day with late afternoon rain.

2024
clear-day
35°/54°-
8

2023 St. Luke's Delaware & Lehigh (D&L) Heritage Marathon

Clear conditions throughout the day.

2023
clear-day
32°/44°-
8

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Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

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