Champlain Islands Marathon
Race Day Weather
Cool and breezy, steady pace
Runners will face a temperature rise from 42°F to 55°F, with a gentle breeze from the SW at 8 mph, gusting to 22 mph. Humidity levels are moderately high at 69%, which may feel slightly uncomfortable. It's advisable to maintain a steady pace and stay hydrated, especially as temperatures increase.
Get forecast alerts for Champlain Islands Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
The certified (VT15301JK*) marathon and half-marathon begin and end near the house where Clarence H. DeMar, seven-time Boston Marathon Winner, once lived. The half-marathon course is out and back on the west shore of South Hero and Grand Isle; a land of farms, apple orchards, and summer cottages. The terrain is flat to rolling.
The entire course is paved. The full marathon course is two out-and-backs of the half-marathon course.
The time cut off for the marathon is 6 hours. The time cut off for the half-marathon is 4 hours.
*The certification is under the old race name, but applies to the new name as the course is unchanged. Formerly the Green Mountain Marathon. Wikipedia