Jackson Hole Marathon

Jackson Hole, WY, USA · September 26, 2026

33°·53° high·Breezy·Dry

Weather

Race Day Weather

33°at start

56° high

Breezy

Dry

Cold start — layer up, big temp swing

Runners will start in chilly 33°F conditions — dress in layers for the corral and plan to shed early. Temps will climb significantly to 56°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 91 days

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

Pre-raceRace windowPost-race

Get forecast alerts for Jackson Hole 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

The Jackson Hole Marathon races cover the best of the Jackson Hole Valley and finish at the base of the Teton Mountain Range in Teton Village. If the altitude doesn’t take your breath away, the scenery certainly will! While you’re here, enjoy Jackson’s vibrant food and art scene, sample some of the best craft breweries in the country, and explore endless open space in the Bridger-Teton National Forest, and Grand Teton and Yellowstone National Parks. Source

Website

Course Map

FAQ

When is the 2026 Jackson Hole Marathon?

The 2026 Jackson Hole Marathon will be held on Saturday September 26, 2026.

Is the Jackson Hole Marathon a Boston Marathon Qualifier?

Yes, the Jackson Hole Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Jackson Hole Marathon?

The forecast calls for a high of 55°F and a low of 29°F with a 9% chance of rain.

Historical Weather

Based on 12 years of data

Avg Temp

65°F

L:41° H:67°

RunScore

Conditions

Rain Freq

17%

2 of 12 yrs

Wind9mph

Dew36°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Jackson Hole Marathon Clear conditions throughout the day with late afternoon rain. 2025	35°/69°	-	32°
2024 Jackson Hole Marathon Clear conditions throughout the day. 2024	36°/73°	-	35°
2023 Jackson Hole Marathon Partly cloudy throughout the day. 2023	41°/54°	-	36°
2022 Jackson Hole Marathon Clear conditions throughout the day. 2022	34°/66°	-	34°
2021 Jackson Hole Marathon Clear conditions throughout the day. 2021	33°/71°	-	34°
2020 Jackson Hole Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2020	45°/53°	Light	40°
2018 Jackson Hole Marathon Clear conditions throughout the day. 2018	40°/71°	-	32°
2017 Jackson Hole Marathon Clear conditions throughout the day. 2017	44°/80°	-	37°
2016 Jackson Hole Marathon Partly cloudy throughout the day with early morning rain. 2016	45°/68°	-	37°
2015 Jackson Hole Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2015	49°/61°	Light	45°
2014 Jackson Hole Marathon Partly cloudy throughout the day with afternoon rain. 2014	48°/71°	-	43°
2012 Jackson Hole Marathon Becoming cloudy in the afternoon. 2012	39°/63°	-	28°

Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide