Juneau Marathon

Juneau, AK, USA · July 25, 2026

56°·62° high·Light·Rain possible

Weather

Race Day Weather

56°at start

63° high

Light

Rain possible

Mild temps, slight humidity

Runners will face a steady temperature increase from 56°F to 62°F, with humidity at 83% and a dew point of 54°F. Winds will be light at 5 mph from the S, with occasional gusts up to 17 mph. Runners should consider adjusting their pace conservatively due to the higher humidity and start hydrating early.

Race day forecast available in 3 days

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Distance: 26.2mi

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0:00:00

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Race Info

Juneau Marathon and Half-Marathon are conducted on rolling, USATF-certified courses on Douglas and North Douglas Highways on Douglas Island (across Gastineau Channel from Juneau, Alaska). The marathon course features scenic water views and a stunning vista of Mendenhall Glacier. Not too many other races in the USA can lay claim to that aspect! Come to Juneau, America's Most Beautiful Capital City, and run our event! Source

Website

Course Map

FAQ

When is the 2026 Juneau Marathon?

The 2026 Juneau Marathon will be held on Saturday July 25, 2026.

Is the Juneau Marathon a Boston Marathon Qualifier?

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

What will the weather be like for the 2026 Juneau Marathon?

The forecast calls for a high of 67°F and a low of 55°F with a 37% chance of rain.

Historical Weather

Based on 20 years of data

Avg Temp

60°F

L:53° H:61°

RunScore

Conditions

Rain Freq

30%

6 of 20 yrs

Wind8mph

Dew54°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Juneau Marathon Partly cloudy throughout the day. 2025	54°/64°	-	52°
2024 Juneau Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2024	52°/54°	Light	52°
2023 Juneau Marathon Partly cloudy throughout the day. 2023	57°/65°	-	56°
2022 Juneau Marathon Cloudy skies throughout the day with rain. 2022	51°/57°	Light	55°
2021 Juneau Marathon Becoming cloudy in the afternoon. 2021	54°/70°	-	56°
2020 Juneau Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2020	53°/55°	Light	54°
2019 Juneau Marathon Partly cloudy throughout the day with rain. 2019	56°/58°	-	56°
2018 Juneau Marathon Partly cloudy throughout the day. 2018	61°/69°	-	56°
2017 Juneau Marathon Partly cloudy throughout the day with rain. 2017	49°/55°	Light	52°
2016 Juneau Marathon Cloudy skies throughout the day. 2016	54°/63°	-	52°
2015 Juneau Marathon Partly cloudy throughout the day. 2015	49°/61°	-	50°
2013 Juneau Marathon Cloudy skies throughout the day. 2013	52°/62°	-	55°
2012 Juneau Marathon Cloudy skies throughout the day with early morning rain. 2012	53°/59°	-	52°
2011 Juneau Marathon Partly cloudy throughout the day. 2011	48°/56°	-	50°
2010 Juneau Marathon Cloudy skies throughout the day with rain. 2010	54°/61°	-	52°
2008 Juneau Marathon Cloudy skies throughout the day. 2008	52°/56°	-	51°
2006 Juneau Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2006	51°/53°	Light	51°
2005 Juneau Marathon Partly cloudy throughout the day with early morning rain. 2005	51°/61°	-	53°
2003 Juneau Marathon Clear conditions throughout the day. 2003	48°/71°	-	50°
2001 Juneau Marathon Cloudy skies throughout the day with rain clearing later. 2001	56°/61°	Light	56°

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