Grand Ridge Marathon

Issaquah, WA, USA · November 7, 2026

38°·43° high·Light·Rain possible

Weather

Race Day Weather

38°at start

43° high

Light

Rain possible

Chilly start, adjust pace wisely

Runners will face a cool start at 37°F, gradually rising to 43°F. With a light 5 mph wind and high humidity at 82%, runners should consider pacing conservatively, especially during the early climbs from miles 1 to 3 and 9 to 11. The chance of light rain may also necessitate a throwaway layer during pre-race; hydration will be crucial given the humidity.

Race day forecast available in 25 days

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Distance: 26.2mi

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Race Info

Grand Ridge Park is an incredible setting to finish off this year. Since 2000, the Washington Trails Association has been hard at work developing over seven miles of connected trail from old logging roads and user-built paths. It has all come together to create a beautiful system of trails that are ideal for running, hiking and biking. Source

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FAQ

When is the 2026 Grand Ridge Marathon?

The 2026 Grand Ridge Marathon will be held on Saturday November 7, 2026.

What is the time limit for the Grand Ridge Marathon?

The time limit for the Grand Ridge Marathon is 9.25 hours.

What will the weather be like for the 2026 Grand Ridge Marathon?

The forecast calls for a high of 46°F and a low of 34°F with a 35% chance of rain.

Historical Weather

Based on 15 years of data

Avg Temp

49°F

L:44° H:52°

RunScore

Conditions

Rain Freq

53%

8 of 15 yrs

Wind7mph

Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Grand Ridge Marathon Partly cloudy throughout the day. 2025	40°/56°	-	41°
2024 Grand Ridge Marathon Cloudy skies throughout the day. 2024	49°/53°	Light	46°
2023 Grand Ridge Marathon Partly cloudy throughout the day with rain. 2023	48°/54°	Light	44°
2022 Grand Ridge Marathon Clear conditions throughout the day. 2022	33°/50°	-	32°
2021 Grand Ridge Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2021	58°/62°	Light	57°
2020 Grand Ridge Marathon Partly cloudy throughout the day with rain clearing later. 2020	46°/52°	Light	39°
2019 Grand Ridge Marathon Partly cloudy throughout the day. 2019	48°/53°	Light	44°
2018 Grand Ridge Marathon Clear conditions throughout the day. 2018	44°/55°	-	38°
2017 Grand Ridge Marathon Clearing in the afternoon. 2017	46°/53°	-	38°
2016 Grand Ridge Marathon Cloudy skies throughout the day with morning rain. 2016	49°/56°	Light	40°
2015 Grand Ridge Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2015	46°/47°	Light	44°
2014 Grand Ridge Marathon Clear conditions throughout the day. 2014	28°/48°	-	17°
2013 Grand Ridge Marathon Partly cloudy throughout the day. 2013	42°/49°	-	32°
2012 Grand Ridge Marathon Partly cloudy throughout the day with rain. 2012	46°/54°	Light	42°
2011 Grand Ridge Marathon Partly cloudy throughout the day. 2011	34°/41°	-	30°

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