Missoula Marathon

Missoula, MT, USA · June 28, 2026

53°·75° high·Light·Dry

Weather

Race Day Weather

53°at start

79° high

Light

Dry

Comfortable temps, big temp swing

Mild 53°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 79°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 31 days

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Distance: 26.2mi

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Race Info

The Missoula Marathon is the brainchild of a group of local, dedicated members of Run Wild Missoula who want to share the area’s beauty and Missoula’s unique feel with runners from all over. The Missoula Marathon is one of our community’s most beloved and supported events. The Missoula Marathon has been named as the Best Marathon In The U.S. on several occasions – in 2010 by the readers of Runner’s World Magazine and in 2017 and 2018 by The BibRave 100. Runner’s World has also named the Missoula Marathon as a Top Marathon For Back-Of-The-Packers (2017) and a Top 10 Bucket List Marathon (2018, 2019 & 2020). Source

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Course Map

FAQ

When is the 2026 Missoula Marathon?

The 2026 Missoula Marathon will be held on Sunday June 28, 2026.

Is the Missoula Marathon a Boston Marathon Qualifier?

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

What will the weather be like for the 2026 Missoula Marathon?

The forecast calls for a high of 80°F and a low of 51°F with a 6% chance of rain.

Historical Weather

Based on 18 years of data

Avg Temp

78°F

L:54° H:79°

RunScore

Conditions

Rain Freq

28%

5 of 18 yrs

Wind5mph

Dew45°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Missoula Marathon Clear conditions throughout the day. 2025	49°/77°	-	42°
2024 Missoula Marathon Partly cloudy throughout the day. 2024	62°/67°	-	52°
2023 Missoula Marathon Partly cloudy throughout the day with afternoon rain. 2023	52°/70°	Light	48°
2022 Missoula Marathon Clear conditions throughout the day. 2022	45°/72°	-	36°
2021 Missoula Marathon Partly cloudy throughout the day with morning rain. 2021	50°/63°	Light	47°
2019 Missoula Marathon Clear conditions throughout the day. 2019	46°/74°	-	44°
2018 Missoula Marathon Clear conditions throughout the day. 2018	55°/85°	-	49°
2017 Missoula Marathon Clear conditions throughout the day. 2017	62°/93°	-	44°
2016 Missoula Marathon Partly cloudy throughout the day with rain. 2016	53°/69°	Light	52°
2015 Missoula Marathon Partly cloudy throughout the day with rain. 2015	60°/62°	Light	59°
2014 Missoula Marathon Clear conditions throughout the day. 2014	57°/92°	-	45°
2013 Missoula Marathon Clear conditions throughout the day. 2013	48°/80°	-	38°
2012 Missoula Marathon Clear conditions throughout the day. 2012	55°/89°	-	50°
2011 Missoula Marathon Clear conditions throughout the day. 2011	47°/77°	-	34°
2010 Missoula Marathon Partly cloudy throughout the day with afternoon rain. 2010	61°/84°	-	48°
2009 Missoula Marathon Clear conditions throughout the day with afternoon rain. 2009	58°/81°	Light	45°
2008 Missoula Marathon Clear conditions throughout the day. 2008	51°/84°	-	36°
2007 Missoula Marathon Clear conditions throughout the day. 2007	64°/96°	-	48°