Thumb Coast Marathon

Caseville, MI, USA · November 8, 2026
partly-cloudy-day38°·47° high·Breezy·Dry
8
Register
Weather
Course
Race Info
FAQ
History

Race Day Weather

partly-cloudy-day
38°at start
47° high
Breezy
Dry

Cool start, steady conditions ahead

Runners will face a cool start at 37°F, rising to 47°F by the finish. Wind will be from the WSW at 10 mph, with gusts up to 21 mph. Given the humidity at 69%, a conservative pacing strategy is advisable to maintain energy, as conditions remain stable throughout the race.

Race day forecast available in 166 days
partly-cloudy-night7
partly-cloudy-night7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8

Get forecast alerts for Thumb Coast Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

This event offers a flat, fast, USATF-certified course stretching across Michigan’s Thumb. The Marathon is a Boston Qualifier, and both the Marathon and Half will include pace teams from Beast Pacing to help you stay on track. Starting in Caseville and finishing in downtown Port Austin, this point-to-point race combines speed, scenery, and small-town charm—making it the perfect fall race-cation. Source

Website
Area Map

Course Map

Course Map Unavailable

We don't have course map data for Thumb Coast Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

FAQ

Ask a Question about the Thumb Coast Marathon

Racecast Concierge (free during beta)

Ask a question about the Thumb Coast Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Thumb Coast Marathon and general racecast.io updates.

When is the 2026 Thumb Coast Marathon?

The 2026 Thumb Coast Marathon will be held on Sunday November 8, 2026.

Is the Thumb Coast Marathon a Boston Marathon Qualifier?

Yes, the Thumb Coast Marathon is an official Boston Marathon qualifier.

What is the time limit for the Thumb Coast Marathon?

The time limit for the Thumb Coast Marathon is 6 hours.

What will the weather be like for the 2026 Thumb Coast Marathon?

The forecast calls for a high of 49°F and a low of 37°F with a 10% chance of rain.

Historical Weather

Based on 1 years of data
Avg Temp
53°F
L:39° H:53°
RunScore
9
Conditions
Rain Freq
0%
0 of 1 yrs
Wind6mph
Dew34°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Thumb Coast Marathon

Clear conditions throughout the day.

2025
partly-cloudy-day
39°/53°-
8

More MI Races

MISH Waterfront Marathon
2026-06-06 · Gladstone, MI, USA
Charlevoix Marathon
2026-06-20 · Charlevoix, MI, USA
Hungry Duck Half Marathon, 10K & 5K Run/Walk
2026-07-04 · Brighton, MI, USA
North Country Trail Marathon
2026-08-29 · Manistee National Forest, MI, USA
Millennium Meadows Marathon
2026-08-30 · Grand Rapids, MI, USA
Marquette Marathon
2026-09-05 · Marquette, MI, USA
Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

Race Day Alerts

Get notified when the Thumb Coast Marathon forecast shifts — so you can adjust your gear, pacing, and strategy.

Forecast shift alerts (temp, wind, rain)
Updates as weather changes leading up to race day
Max one message per day
Text Alerts

USA, UK, and Canada only. Standard rates apply.

or
Email Alerts

By subscribing you agree to receive race forecasts and racecast.io updates.

Submit a correction

Spot something wrong or missing for the Thumb Coast Marathon? Let us know and we'll update it.

You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR

Submit a race

Missing a race? Send it in and we'll add it to Racecast.