In 217 days · Sun, May 2, 2027
Don't let race day sneak up
One email during race week. That's it.
When
Sunday, May 2nd, 2027
Where
Sandstone Ranch Park, Longmont CO
Distances
Half · 5K
Typical weather
38–64°F · some rain risk
See last 10 years
On this date: rain 5 of the last 10 years
2026
34–70°F
dry
2025
34–63°F
dry
2024
35–60°F
dry
2023
44–69°F
dry
2022
36–47°F
rain
2021
47–66°F
rain
2020
48–66°F
rain
2019
34–57°F
dry
2018
43–51°F
rain
2017
38–59°F
rain
Best months to race in Colorado →
About this race
Event Overview
- Event: Longmont Half & 5k (LM Half)
- Date: 2027-05-02
- Location: Sandstone Ranch Park, Longmont, CO
- More Info: Race Website
Race Details
- Half Marathon: Longmont's only Half Marathon, now offered in the cooler month of MAY!
- 5k Distance: Join the Half Marathon or 5k distance!
- All Abilities: Walkers and Runners of all abilities welcome!
Course map
Hotels for race weekend
Live prices near the start line, May 1 – 3, 2027.
Train with a club
Run clubs near Longmont to train with before race day.
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