Bismarck Marathon

Bismarck, ND, USA · September 19, 2026

53°·69° high·Breezy·Dry

Weather

Race Day Weather

53°at start

73° high

Breezy

Dry

Cool start, warming trend

Runners will face a temperature rise from 53°F at the start to 70°F towards the finish, with an average humidity of 61% and a dew point of 48°F. Wind will come from the SW at 12 mph, gusting to 24 mph, creating a headwind effect. Runners should start conservatively and stay hydrated as temperatures climb.

Race day forecast available in 46 days

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

—

Weather Adj.

—

Common Goals:

Get forecast alerts for Bismarck Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The Bismarck Marathon offers a fast, flat, and fully paved course that winds alongside the scenic Missouri River, providing runners with breathtaking views and an opportunity to achieve personal bests. Starting and finishing at the iconic North Dakota State Capitol Grounds, the route also traverses historic downtown Bismarck neighborhoods, adding a unique charm to the race experience. As North Dakota's longest-running marathon, it serves as a USATF-certified Boston Marathon qualifier, attracting participants from across the region.

Website

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 will the weather be like for the 2026 Bismarck Marathon?

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

Historical Weather

Based on 20 years of data

Avg Temp

69°F

L:49° H:69°

RunScore

Conditions

Rain Freq

20%

4 of 20 yrs

Wind11mph

Dew48°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°/69°	-	55°
2024 Bismarck Marathon Clear conditions throughout the day. 2024	38°/68°	-	40°
2023 Bismarck Marathon Partly cloudy throughout the day. 2023	45°/66°	-	50°
2022 Bismarck Marathon Partly cloudy throughout the day with rain in the morning and afternoon. 2022	55°/60°	Light	54°
2021 Bismarck Marathon Clear conditions throughout the day. 2021	53°/78°	-	51°
2019 Bismarck Marathon Partly cloudy throughout the day with early morning rain. 2019	62°/67°	-	60°
2018 Bismarck Marathon Cloudy skies throughout the day. 2018	58°/65°	-	57°
2017 Bismarck Marathon Partly cloudy throughout the day with morning rain. 2017	46°/52°	Light	45°
2016 Bismarck Marathon Clear conditions throughout the day. 2016	42°/77°	-	50°
2015 Bismarck Marathon Clear conditions throughout the day. 2015	43°/77°	-	42°
2014 Bismarck Marathon Partly cloudy throughout the day. 2014	52°/71°	-	50°
2013 Bismarck Marathon Clear conditions throughout the day. 2013	38°/70°	-	42°
2012 Bismarck Marathon Clear conditions throughout the day. 2012	46°/84°	-	35°
2011 Bismarck Marathon Cloudy skies throughout the day with afternoon rain. 2011	50°/54°	Light	50°
2010 Bismarck Marathon Becoming cloudy in the afternoon. 2010	36°/51°	-	33°
2009 Bismarck Marathon Clear conditions throughout the day. 2009	53°/85°	-	49°
2008 Bismarck Marathon Clear conditions throughout the day. 2008	51°/74°	-	48°
2007 Bismarck Marathon Clear conditions throughout the day. 2007	39°/65°	-	24°
2006 Bismarck Marathon Partly cloudy throughout the day with rain. 2006	55°/60°	Light	52°
2005 Bismarck Marathon Clear conditions throughout the day. 2005	72°/90°	-	57°