Runners will face temperatures starting at 58°F and rising to 64°F, with high humidity at 89%. Light winds from the east-northeast at 9 mph will provide minimal impact. It’s advisable to pace steadily and stay hydrated throughout, as the humidity may feel heavier.

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Distance: 26.2mi

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Race Info

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

FAQ

When is the 2026 Bismarck Marathon?

The 2026 Bismarck Marathon will be held on Saturday September 19, 2026.

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 2026 Bismarck Marathon?

The forecast calls for a high of 65°F and a low of 58°F with a 0% chance of rain.

Historical Weather

Based on 20 years of data

Avg Temp

53°F

L:49° H:60°

RunScore

Conditions

Rain Freq

15%

3 of 20 yrs

Wind7mph

Dew46°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
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°