The 2025 event has concluded.

Grand Ridge Marathon

Issaquah, WA, USA • November 8, 2025
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Race Day Weather

partly-cloudy-day
39°
56° high
Light
Dry

Cool start, steady conditions ahead

Runners will face a temperature rise from 40°F to 56°F during the race, with a gentle breeze from the WSW at 6 mph. Humidity will be moderate at 77%, which may feel slightly damp. Runners are advised to maintain a steady pace and stay hydrated as the temperature increases.

partly-cloudy-night7
partly-cloudy-night7
partly-cloudy-night8
clear-day7
clear-day8
clear-day8
clear-day9
clear-day9
partly-cloudy-day9
clear-day9
partly-cloudy-day9
partly-cloudy-day9

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

Area Map

Course Map

Course Map Unavailable

We don't have course map data for Grand Ridge Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

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FAQ

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When is the 2025 Grand Ridge Marathon?

The 2025 Grand Ridge Marathon will be held on Saturday November 8, 2025.

Historical Weather

Based on 14 years of data
Avg Temp
51°F
L:44° H:52°
RunScore
8
Conditions
Rain Freq
50%
7 of 14 yrs
Wind8mph
Dew38°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2024 Grand Ridge Marathon

Cloudy skies throughout the day with rain.

2024
cloudy
49°/53°Light
9

2023 Grand Ridge Marathon

Partly cloudy throughout the day with a chance of rain throughout the day.

2023
rain
49°/54°Light
7

2022 Grand Ridge Marathon

Clear conditions throughout the day.

2022
clear-day
33°/50°-
8

2021 Grand Ridge Marathon

Cloudy skies throughout the day with a chance of rain throughout the day.

2021
rain
58°/63°Light
6

2020 Grand Ridge Marathon

Partly cloudy throughout the day with rain clearing later.

2020
cloudy
46°/52°Light
7

2019 Grand Ridge Marathon

Partly cloudy throughout the day with afternoon rain.

2019
partly-cloudy-day
48°/53°-
9

2018 Grand Ridge Marathon

Clear conditions throughout the day.

2018
partly-cloudy-day
44°/55°-
8

2017 Grand Ridge Marathon

Clearing in the afternoon.

2017
partly-cloudy-day
46°/53°-
9

2016 Grand Ridge Marathon

Cloudy skies throughout the day with rain in the morning and afternoon.

2016
rain
49°/56°Light
8

2015 Grand Ridge Marathon

Cloudy skies throughout the day with a chance of rain throughout the day.

2015
rain
46°/47°Light
6

2014 Grand Ridge Marathon

Clear conditions throughout the day.

2014
clear-day
27°/48°-
8

2013 Grand Ridge Marathon

Partly cloudy throughout the day.

2013
partly-cloudy-day
42°/49°-
8

2012 Grand Ridge Marathon

Partly cloudy throughout the day with rain.

2012
partly-cloudy-day
47°/55°Light
8

2011 Grand Ridge Marathon

Partly cloudy throughout the day.

2011
cloudy
34°/41°-
7
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