Dog Days of Summer logo

Dog Days of Summer

Dog Days of Summer is a running race on August 8, 2026 in Longmont, CO, with entry fees from $20 to $40.

Date
August 8, 2026 (16 days to go)
Price
$20–$40
Sport
Running
Register →

From the Organizer

Come join us on August 8, 2026  for a race around the entirety of beautiful Lake McIntosh! This 3.5 mile race is a half paved/half dirt course surrounded by wonderful mountain views, vast farmlands, and beautiful aquatic wildlife! Gather at Dawson Neighborhood park near the pirate ship playground where you will find an assortment of vendors, music, games, and fun! All are welcome to participate in this awesome event! Doggos are encouraged to participate!

We are SO excited to announce the partnership with our Charitable Sponsor, The Longmont Humane Society! By joining the optional Wag Wave in your registration, the added price to your ticket will be directly donated to support the wellbeing of all animals sheltered at our local humane society! We will also be donating a portion of all proceeds to the shelter to further support all of our four legged friends!

Events

Kidz Dash$20
Dog Days of Summer 3.5 Loop$40

Weather

Typical Conditions

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

89°

Typical Low

55°

Chance of Rain

24%

Based on US Climate Normals data from Longmont 2 Ese, 1 mi from the venue.

Sunrise 6:05 AMSunset 8:06 PMDaylight 14h 1m

Host City

About Longmont, CO

City Elevation

4,947 ft

Nearest Airport

BJC

Rocky Mountain Metropolitan Airport · 17 mi

Major Hub

DEN

Denver International Airport · 30 mi

Time Zone

Mountain Time

From Endurance Grid

Line up lodging and travel early to lock in your race weekend.

Race Location

Your Next Start Line

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at Dog Days of Summer, put it on the calendar, and turn “someday” into a start date.

16

Days to train

Race
Dog Days of Summer
Date
August 8, 2026

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From Endurance Grid

About This Sport

Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.

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.

Read the Guide

Running

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.

Plan your trip

Make it a Racecation

Coming from out of town? There's more to Longmont than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.

Plan your trip to Longmont
Lodging
Flights
Rental Car
Activities

Frequently Asked Questions (FAQs)

What is the Dog Days of Summer?+
Dog Days of Summer is a running race held in Longmont, Colorado on August 8, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
When and where is the Dog Days of Summer?+
Saturday, August 8, 2026 in Longmont, Colorado at Dawson Park @ Lake McIntosh. Check the event page for exact start times and wave schedules.
How do I register for the Dog Days of Summer?+
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Dog Days of Summer

Aug 8, 2026

Register →