Thumb Coast Marathon

Caseville, MI, USA · November 8, 2026
partly-cloudy-day38°·47° high·Breezy·Dry
8
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Race Day Weather

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

Cool start, steady conditions

Runners will face a temperature rise from 37°F to 47°F with a consistent wind from the WSW at 10 mph, gusting to 21 mph. Humidity will be 69% with a dew point of 34°F, making conditions feel cool but manageable. Runners should consider a conservative start to gauge their pace as temperatures rise.

Race day forecast available in 145 days
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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

Area Map

Course Map

FAQ

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
partly-cloudy-day
39°/53°-
8