In 7 days · Sun, Nov 8, 2026
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Sunday, November 8th, 2026
Frontier Park, Saint Charles MO
10K · 5K · Marathon · Half
41–58°F · low rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2025
43–60°F
dry
2024
42–60°F
dry
2023
59–81°F
dry
2022
47–60°F
dry
2021
46–72°F
dry
2020
59–73°F
dry
2019
22–35°F
dry
2018
33–44°F
dry
2017
36–50°F
dry
2016
53–60°F
rain
Best months to race in Missouri →
Race-day forecast · Sunday, Nov 8
Sunny · 42–65°F
Sunday, Nov 8starts near 42°F · 13% chance of rain · wind up to 14 mph
About this race
Don't miss the fun and excitement of the 15th annual MO' Cowbell Race on November 8, 2026! Four events to choose from on Sunday morning, the Marathon, the Half-Marathon, 10K or the 5K. Flat & fast courses, perfect for beginners or those who want to set a new personal best!
Registration for the Marathon, Half-Marathon, 10K, or the 5K includes:
- Commemorative performance long-sleeve swag
- One-of-a-Kind finisher medal
- FREE and convenient parking
- Free downloadable photos for all participants
- Two-day Health and Fitness ExMO' Packet Pickup
- Family friendly post race party with lots of food, fun, and music
Registration for the Virtual Run includes:
- 2026 One-Of-A-Kind Finisher Medal
- Shipping and handling of your medal to you
- Option to add on race swag
Course map
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Run clubs near Saint Charles to train with before race day.
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