Boise Marathon

Boise, ID, USA · June 20, 2027

58°·76° high·Breezy·Dry

Weather

Race Day Weather

58°at start

81° high

Breezy

Dry

Cool start, warming finish

Runners will face a temperature increase from 58°F at the start to 72°F by the finish, with a light headwind in the early miles. Humidity remains low at 36%, but the wind will be a factor, particularly with headwinds from miles 1-4 and 11-17. To optimize performance, runners should consider pacing conservatively in the first segment and adjust for tailwinds in the middle portions.

Race day forecast available in 212 days

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Distance: 26.2mi

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Race Info

One leg of SoleKIDs' 'Boise Four' race series, run every June from Payette Brewing Company in downtown Boise, Idaho. The early 6:04 a.m. start is set specifically to beat the summer heat on a course that is not USATF certified. Distinct from the separate, Boston-qualifying 'Onward Shay! Boise Marathon,' held each October by a different organizer. Source

Website

FAQ

When is the 2027 Boise Marathon?

The 2027 Boise Marathon will be held on Sunday June 20, 2027.

Is the Boise Marathon a Boston Marathon Qualifier?

Yes, the Boise Marathon is an official Boston Marathon qualifier.

What is the time limit for the Boise Marathon?

The time limit for the Boise Marathon is 6 hours.

What will the weather be like for the 2027 Boise Marathon?

The forecast calls for a high of 88°F and a low of 58°F with a 1% chance of rain.

Historical Weather

Based on 3 years of data

Avg Temp

70°F

L:57° H:72°

RunScore

Conditions

Rain Freq

33%

1 of 3 yrs

Wind7mph

Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Boise Marathon Partly cloudy throughout the day with rain in the morning and afternoon. 2026	63°/70°	Light	57°
2025 Boise Marathon Clear conditions throughout the day. 2025	45°/57°	-	35°
2024 Boise Marathon Clear conditions throughout the day. 2024	62°/89°	-	39°

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