Calgary Marathon

Calgary, AB, Canada · May 30, 2027

45°·62° high·Light·Dry

Weather

Race Day Weather

45°at start

65° high

Light

Dry

Cool start, moderate finish

Runners will face a temperature rise from 44°F at the start to a comfortable 64°F by the end. Winds will be light at 7 mph from the WNW, with gusts up to 23 mph being a minor factor. With humidity at 54% and a slight chance of rain, pacing can remain steady throughout, though hydration should be prioritized as temperatures increase.

Race day forecast available in 248 days

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Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

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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

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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

64°F

L:47° H:65°

RunScore

Conditions

Rain Freq

21%

5 of 24 yrs

Wind8mph

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°/61°	-	31°
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°