Des Moines Marathon

Des Moines, IA • October 18, 2026

Race Day Weather

45°

64° high

Breezy

Dry

Cool start, gradual warming

Runners will face a temperature rise from 45°F at the start to 64°F by the finish, with humidity at a manageable 55%. Wind will vary, providing crosswinds in the early miles, shifting to headwinds between Miles 5-6 and 15-20, and tailwinds from Mile 7-8 and 21-25. To maintain pace, runners should consider adjusting their effort during exposed sections, especially in headwind areas.

Race day forecast available in 189 days

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Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

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Pace

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Weather Adj.

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Common Goals:

The IMT Des Moines Marathon is a marathon held annually in downtown Des Moines, Iowa. It serves as a qualifier for the Boston Marathon.

Race weekend features the Mercy Live Up Loop 5-Mile Run & 1-Mile Walk and Mercy Children's Hospital & Clinics 1-Mile Youth Run and Jingle Jog on Saturday followed by the IMT Des Moines Marathon & Half Marathon, Bankers Trust Marathon Relay and Principal 5K Road Race on Sunday. Wikipedia

FAQ

When is the 2026 Des Moines Marathon?

The 2026 Des Moines Marathon will be held on Sunday October 18, 2026.

Is the Des Moines Marathon a Boston Marathon Qualifier?

Yes, the Des Moines Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Des Moines Marathon?

The forecast calls for a high of 64°F and a low of 45°F with a 0% chance of rain.

Historical Weather

Based on 21 years of data

Avg Temp

65°F

L:44° H:65°

RunScore

Conditions

Rain Freq

0 of 21 yrs

Wind13mph

Dew40°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Des Moines Marathon Clear conditions throughout the day. 2025	43°/62°	-	34°
2024 Des Moines Marathon Clear conditions throughout the day. 2024	52°/81°	-	43°
2023 Des Moines Marathon Partly cloudy throughout the day. 2023	47°/53°	-	40°
2022 Des Moines Marathon Partly cloudy throughout the day. 2022	42°/56°	-	33°
2021 Des Moines Marathon Clear conditions throughout the day. 2021	41°/71°	-	38°
2019 Des Moines Marathon Partly cloudy throughout the day with late afternoon rain. 2019	42°/64°	-	44°
2018 Des Moines Marathon Clear conditions throughout the day. 2018	27°/57°	-	26°
2017 Des Moines Marathon Partly cloudy throughout the day. 2017	47°/58°	-	39°
2016 Des Moines Marathon Cloudy skies throughout the day. 2016	62°/74°	-	65°
2015 Des Moines Marathon Clear conditions throughout the day. 2015	38°/65°	-	29°
2014 Des Moines Marathon Clear conditions throughout the day. 2014	41°/65°	-	44°
2013 Des Moines Marathon Partly cloudy throughout the day. 2013	43°/61°	-	40°
2012 Des Moines Marathon Partly cloudy throughout the day. 2012	46°/78°	-	51°
2011 Des Moines Marathon Partly cloudy throughout the day. 2011	50°/62°	-	37°
2010 Des Moines Marathon Partly cloudy throughout the day. 2010	42°/65°	-	26°
2009 Des Moines Marathon Clear conditions throughout the day. 2009	35°/62°	-	35°
2008 Des Moines Marathon Partly cloudy throughout the day. 2008	50°/71°	-	47°
2007 Des Moines Marathon Partly cloudy throughout the day. 2007	59°/71°	-	53°
2006 Des Moines Marathon Cloudy skies throughout the day with rain clearing later. 2006	42°/57°	-	39°
2004 Des Moines Marathon Partly cloudy throughout the day. 2004	36°/59°	-	31°
2003 Des Moines Marathon Clear conditions throughout the day. 2003	50°/77°	-	47°