Calgary Marathon

Calgary, AB, Canada • May 24, 2026

Race Day Weather

43°

61° high

Breezy

Dry

Cool start, warming up steadily

Runners will face a temperature trend starting at 43°F and rising to 60°F. With a light breeze from the SW at 9 mph, conditions remain favorable for performance. Humidity is moderate at 59%, allowing for a steady effort without excessive hydration needs. Runners should pace conservatively early on to adapt to the warming afternoon.

Race day forecast available in 46 days

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Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

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Weather Adj.

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Common Goals:

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

Course Map

FAQ

When is the 2026 Calgary Marathon?

The 2026 Calgary Marathon will be held on Sunday May 24, 2026.

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 2026 Calgary Marathon?

The forecast calls for a high of 61°F and a low of 43°F with a 0% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 23 years of data

Avg Temp

64°F

L:47° H:65°

RunScore

Conditions

Rain Freq

22%

5 of 23 yrs

Wind8mph

Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Calgary Marathon Clear conditions throughout the day. 2025	47°/74°	-	43°
2024 Calgary Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2024	42°/58°	Light	40°
2023 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2023	50°/75°	-	43°
2022 Calgary Marathon Cloudy skies throughout the day. 2022	47°/57°	-	32°
2021 Calgary Marathon Partly cloudy throughout the day. 2021	41°/59°	-	27°
2019 Calgary Marathon Partly cloudy throughout the day with morning rain. 2019	38°/61°	Light	34°
2018 Calgary Marathon Partly cloudy throughout the day. 2018	51°/73°	-	37°
2017 Calgary Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2017	51°/68°	-	38°
2016 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2016	49°/64°	-	32°
2015 Calgary Marathon Partly cloudy throughout the day. 2015	52°/73°	-	45°
2014 Calgary Marathon Partly cloudy throughout the day with rain. 2014	49°/66°	-	43°
2013 Calgary Marathon Partly cloudy throughout the day with early morning rain. 2013	41°/62°	-	37°
2012 Calgary Marathon Partly cloudy throughout the day. 2012	36°/48°	-	35°
2011 Calgary Marathon Partly cloudy throughout the day. 2011	38°/55°	-	27°
2010 Calgary Marathon Cloudy skies throughout the day with a chance of rain or snow throughout the day. 2010	35°/45°	Light	32°
2009 Calgary Marathon Partly cloudy throughout the day with morning rain. 2009	48°/66°	-	28°
2008 Calgary Marathon Partly cloudy throughout the day. 2008	56°/70°	-	51°
2007 Calgary Marathon Cloudy skies throughout the day with rain in the morning and afternoon. 2007	55°/65°	Light	52°
2006 Calgary Marathon Partly cloudy throughout the day with rain. 2006	60°/80°	Light	57°
2005 Calgary Marathon Partly cloudy throughout the day. 2005	51°/65°	-	39°
2004 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2004	53°/66°	-	46°
2003 Calgary Marathon Partly cloudy throughout the day. 2003	47°/61°	-	44°
2002 Calgary Marathon Partly cloudy throughout the day. 2002	52°/79°	-	40°

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