
Monster Mad Dash 5K is a running race on October 3, 2026 in Mountlake Terrace, WA, with an entry fee of $35.
Join the fun at the 18th Annual Monster Mad Dash 5K on October 3, 2026!
This fun-filled 5K is more than just a race, it's a community celebration with a purpose. Get ready to lace up your running shoes and don your spookiest costume to benefit children in the Edmonds School District! Form a team, wear your favorite costume, and run, walk or wag across the finish line!
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
65°
Typical Low
50°
Chance of Rain
38%
Based on US Climate Normals data from Seattle Sand Pt Wsfo, 8 mi from the venue.
City Elevation
489 ft
Nearest Airport
SEA
Seattle–Tacoma International Airport · 24 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Every finish line starts with a single decision. Claim your spot at Monster Mad Dash 5K, put it on the calendar, and turn “someday” into a start date.
17
Days to train
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With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Monster Mad Dash 5K
Oct 3, 2026