Arches Half Marathon

Moab, UT, USA · October 3, 2026

48°·64° high·Light·Dry

Weather

Race Day Weather

48°at start

67° high

Breezy

Dry

Cool morning, warming up gradually

Runners will face a temperature rise from 46°F at the start to 65°F by the finish. Wind will be light and variable, with a maximum of 9 mph from the S. With low humidity at 36%, runners can maintain their pace but should stay hydrated as temperatures climb. Adjusting pace during the warmest stretches is advisable.

Race day forecast available in 22 days

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Distance: 13.1mi

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Race Info

The Arches Half Marathon runs on the Behind the Rocks Trail about 13 miles south of Moab, Utah, alongside a companion 15K, marathon, and 50K held the same day on the same desert course. The route follows jeep roads and sandy washes with views of the La Sal Mountains and Picture Frame Arch. Mad Moose Events, a family-run race company, has organized the event since 2017. A high-clearance or four-wheel-drive vehicle is recommended for the unpaved access road to the start/finish area.

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Course Map

FAQ

When is the 2026 Arches Half Marathon?

The 2026 Arches Half Marathon will be held on Saturday October 3, 2026.

What is the time limit for the Arches Half Marathon?

The time limit for the Arches Half Marathon is 4.5 hours.

What will the weather be like for the 2026 Arches Half Marathon?

The forecast calls for a high of 70°F and a low of 45°F with a 7% chance of rain.

Historical Weather

Based on 9 years of data

Avg Temp

64°F

L:50° H:65°

RunScore

Conditions

Rain Freq

0 of 9 yrs

Wind10mph

Dew26°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Arches Half Marathon Partly cloudy throughout the day with early morning rain. 2025	62°/71°	-	35°
2024 Arches Half Marathon Clear conditions throughout the day. 2024	64°/81°	-	23°
2023 Arches Half Marathon Clear conditions throughout the day. 2023	51°/71°	-	34°
2022 Arches Half Marathon Clear conditions throughout the day. 2022	53°/70°	-	40°
2021 Arches Half Marathon Clear conditions throughout the day with early morning rain. 2021	49°/60°	-	44°
2020 Arches Half Marathon Clear conditions throughout the day. 2020	61°/73°	-	30°
2019 Arches Half Marathon Clear conditions throughout the day. 2019	30°/57°	-	-3°
2018 Arches Half Marathon Partly cloudy throughout the day. 2018	42°/48°	-	23°
2017 Arches Half Marathon Clear conditions throughout the day. 2017	37°/53°	-	10°

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