Champlain Islands Marathon
Race Day Weather
Cool conditions, steady breeze
Runners will face a temperature increase from 42°F to 55°F, with an average humidity of 69% and a dew point of 39°F. Wind will come from the WSW at 8 mph, with gusts reaching up to 22 mph. Runners should maintain a consistent pace and consider hydration strategies, as conditions are favorable for racing.
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