Race Day Weather
37°
49° high
Breezy
Dry
Cool start, steady conditions ahead
Runners will face a cool start at 39°F, rising to 49°F by race end. Winds from the SW at 11 mph will provide a slight challenge, with gusts up to 25 mph. With humidity at 56%, pacing strategies should remain consistent, and extra layers may be beneficial at the start.
Race day forecast available in 207 days
Pre-raceRace windowPost-race
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
FAQ
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 49°F and a low of 37°F with a 0% chance of rain.
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