Bismarck Marathon

Bismarck, ND, USA · September 18, 2027

51°·62° high·Breezy·Dry

Weather

Bismarck Marathon race day weather

51°at start

73° high

Breezy

Dry

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Cool start, warming finish

Runners will face a temperature rise from 51°F at the start to 62°F by finish, with average humidity at 67%. A light SSW wind may provide a slight tailwind, but gusts could challenge pacing. Given the humidity, runners should start conservatively to maintain energy as temperatures rise.

Race day forecast available in 299 days

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Distance: 26.2mi

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About the Bismarck Marathon

The Bismarck Marathon starts and finishes on the North Dakota State Capitol grounds in Bismarck. The out-and-back course runs along the Missouri River and through downtown Bismarck neighborhoods. Both the full and half marathon courses are USATF-certified, and the marathon is a Boston Marathon qualifier. It's North Dakota's longest-running marathon, first held in 2005.

Website

Race weekend

Saturday, September 19

7:30 AMMarathon (26.2 mi)

7:30 AMHalf Marathon (13.1 mi)

7:40 AM5K (3.1 mi)

7:50 AM10K (6.2 mi)

11:00 AM4K (2.5 mi)

Course Map

Bismarck Marathon FAQ

When is the 2027 Bismarck Marathon?

The 2027 Bismarck Marathon will be held on Saturday September 18, 2027.

Is the Bismarck Marathon a Boston Marathon Qualifier?

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

What is the time limit for the Bismarck Marathon?

The time limit for the Bismarck Marathon is 6.5 hours.

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

The forecast calls for a high of 74°F and a low of 50°F with a 6% chance of rain.

What is the weather usually like for the Bismarck Marathon?

Over the 21 years racecast.io has race-day weather for (2005 to 2026), it averaged 50°F at the start and 60°F by a typical finish. Rain fell during race hours in 3 of those years (2006, 2017 and 2022).

What was the hottest Bismarck Marathon?

Of the 21 years on record, 2005 was the warmest, reaching 75°F during race hours. The coldest start was 2010, at 35°F.

What was the windiest Bismarck Marathon?

Of the 21 years on record, 2018 was the windiest, with wind averaging 12 mph during race hours. The calmest was 2024, at 1 mph.

Bismarck Marathon weather history

Based on 21 years of data

Avg Temp

54°F

L:49° H:60°

RunScore

Conditions

Rain Freq

14%

3 of 21 yrs

Wind7mph

Dew46°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Bismarck Marathon Cloudy skies throughout the day. 2026	58°/61°	-	57°
2025 Bismarck Marathon Partly cloudy throughout the day. 2025	57°/60°	-	55°
2024 Bismarck Marathon Clear conditions throughout the day. 2024	36°/57°	-	39°
2023 Bismarck Marathon Partly cloudy throughout the day. 2023	45°/59°	-	48°
2022 Bismarck Marathon Partly cloudy throughout the day with rain in the morning and afternoon. 2022	55°/56°	Light	54°
2021 Bismarck Marathon Clear conditions throughout the day. 2021	52°/65°	-	47°
2019 Bismarck Marathon Partly cloudy throughout the day with early morning rain. 2019	61°/64°	-	60°
2018 Bismarck Marathon Cloudy skies throughout the day. 2018	58°/60°	-	55°
2017 Bismarck Marathon Partly cloudy throughout the day with morning rain. 2017	46°/47°	Light	46°
2016 Bismarck Marathon Clear conditions throughout the day. 2016	41°/65°	-	46°
2015 Bismarck Marathon Clear conditions throughout the day. 2015	43°/63°	-	43°
2014 Bismarck Marathon Partly cloudy throughout the day. 2014	52°/69°	-	51°
2013 Bismarck Marathon Clear conditions throughout the day. 2013	38°/57°	-	40°
2012 Bismarck Marathon Clear conditions throughout the day. 2012	46°/67°	-	34°
2011 Bismarck Marathon Cloudy skies throughout the day with afternoon rain. 2011	50°/52°	-	49°
2010 Bismarck Marathon Becoming cloudy in the afternoon. 2010	35°/46°	-	33°
2009 Bismarck Marathon Clear conditions throughout the day. 2009	52°/71°	-	50°
2008 Bismarck Marathon Clear conditions throughout the day. 2008	51°/61°	-	45°
2007 Bismarck Marathon Clear conditions throughout the day. 2007	38°/53°	-	8°
2006 Bismarck Marathon Partly cloudy throughout the day with rain. 2006	55°/57°	Light	52°
2005 Bismarck Marathon Clear conditions throughout the day. 2005	69°/75°	-	57°