Calgary Marathon

Calgary, AB, Canada · May 30, 2027

45°·61° high·Light·Dry

Weather

Race Day Weather

45°at start

65° high

Light

Dry

Your goal

0:00:00

to see the forecast where you'll be

Cool start — fast day potential, big temp swing

A cool 45°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 65°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 227 days

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Distance: 26.2mi

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Race Info

The Calgary Marathon Race Weekend is Canada's longest running marathon and Alberta's Best Road Race. With a variety of distances to choose, we offer a race for every age and ability. Source

Website

Race weekend

Sunday, May 30

7:00 AMMarathon (26.2 mi)

Half Marathon (13.1 mi)

10K (6.2 mi)

5K (3.1 mi)

Course Map

FAQ

When is the 2027 Calgary Marathon?

The 2027 Calgary Marathon will be held on Sunday May 30, 2027.

Is the Calgary Marathon a Boston Marathon Qualifier?

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

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

The forecast calls for a high of 69°F and a low of 44°F with a 8% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 24 years of data

Avg Temp

53°F

L:47° H:59°

RunScore

Conditions

Rain Freq

2 of 24 yrs

Wind6mph

Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Calgary Marathon Partly cloudy throughout the day. 2026	48°/53°	-	32°
2025 Calgary Marathon Clear conditions throughout the day. 2025	47°/65°	-	43°
2024 Calgary Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2024	42°/47°	Light	39°
2023 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2023	50°/70°	-	44°
2022 Calgary Marathon Cloudy skies throughout the day. 2022	47°/53°	-	32°
2021 Calgary Marathon Partly cloudy throughout the day. 2021	41°/54°	-	29°
2019 Calgary Marathon Partly cloudy throughout the day with morning rain. 2019	38°/56°	Light	34°
2018 Calgary Marathon Partly cloudy throughout the day. 2018	51°/65°	-	38°
2017 Calgary Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2017	51°/63°	-	39°
2016 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2016	49°/61°	-	32°
2015 Calgary Marathon Partly cloudy throughout the day. 2015	52°/66°	-	46°
2014 Calgary Marathon Partly cloudy throughout the day with rain. 2014	49°/62°	-	45°
2013 Calgary Marathon Partly cloudy throughout the day with early morning rain. 2013	41°/58°	-	36°
2012 Calgary Marathon Partly cloudy throughout the day. 2012	36°/45°	-	34°
2011 Calgary Marathon Partly cloudy throughout the day. 2011	38°/52°	-	28°
2010 Calgary Marathon Cloudy skies throughout the day with a chance of rain or snow throughout the day. 2010	35°/37°	-	33°
2009 Calgary Marathon Partly cloudy throughout the day with morning rain. 2009	48°/61°	-	26°
2008 Calgary Marathon Partly cloudy throughout the day. 2008	56°/66°	-	52°
2007 Calgary Marathon Cloudy skies throughout the day with rain in the morning and afternoon. 2007	55°/60°	-	52°
2006 Calgary Marathon Partly cloudy throughout the day with rain. 2006	60°/74°	-	56°
2005 Calgary Marathon Partly cloudy throughout the day. 2005	51°/63°	-	39°
2004 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2004	53°/61°	-	47°
2003 Calgary Marathon Partly cloudy throughout the day. 2003	47°/55°	-	42°
2002 Calgary Marathon Partly cloudy throughout the day. 2002	52°/71°	-	40°