Redmond Harvest Half Marathon
Race Day Weather
Cool start, warming up steadily
Runners will face temperatures starting at 56°F and rising to 68°F by the finish. With light winds under 8 mph, conditions will be manageable, but headwinds will challenge runners between miles 2 and 10. Adjusting pace conservatively early on is advised, especially as humidity sits at 66%. A light throwaway layer may be beneficial during the pre-race warm-up as feels-like temperatures drop to 52°F.
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Race Info
The Redmond Harvest Half Marathon is a Labor Day half marathon in Redmond, Washington, organized by the Lake Sammamish Run Club and Seattle United Runners. The course is a flat, fully paved out-and-back along the Sammamish River Trail. It debuted in 2023 with a Marymoor Park start and finish; starting in 2026 the race begins and ends at Redmond Town Center.
