Runners will face a temperature rise from 58°F at the start to a peak of 74°F. With a gentle SW wind at 7 mph and humidity at 71%, it’s advisable for runners to pace conservatively as the heat builds. Staying hydrated will be crucial, especially as temperatures climb.

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi

Finish time

0:00:00

HH:MM:SS

Pace

—

Enter a finish time to see what race day does to it.

Pace

—

Enter a finish time to see your race-day finish and True Effort, with what the weather, wind and hills do to it.

Common Goals:

Get forecast alerts for Tunnel Vision Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The Tunnel Vision Marathon offers a fast, point-to-point course through the scenic Pacific Northwest. Runners start at Hyak Sno-Park near Snoqualmie Pass, traverse the historic 2.4-mile Snoqualmie Tunnel, and descend approximately 1,000 feet over 26.2 miles on packed gravel trails. The route features stunning mountain views, waterfalls, and lush forests, culminating in a finish near North Bend. This course is renowned for its potential to set personal records and qualify for the Boston Marathon.

Website

Course Map

FAQ

When is the 2026 Tunnel Vision Marathon?

The 2026 Tunnel Vision Marathon will be held on Sunday August 9, 2026.

Is the Tunnel Vision Marathon a Boston Marathon Qualifier?

Yes, the Tunnel Vision Marathon is an official Boston Marathon qualifier.

What is the time limit for the Tunnel Vision Marathon?

The time limit for the Tunnel Vision Marathon is 6 hours.

What will the weather be like for the 2026 Tunnel Vision Marathon?

The forecast calls for a high of 77°F and a low of 57°F with a 0% chance of rain.

Historical Weather

Based on 10 years of data

Avg Temp

64°F

L:60° H:69°

RunScore

Conditions

Rain Freq

0 of 10 yrs

Wind5mph

Dew55°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Tunnel Vision Marathon Clear conditions throughout the day. 2026	57°/65°	-	54°
2025 Tunnel Vision Marathon Clear conditions throughout the day. 2025	64°/78°	-	57°
2024 Tunnel Vision Marathon Partly cloudy throughout the day. 2024	61°/63°	-	56°
2023 Tunnel Vision Marathon Clear conditions throughout the day. 2023	65°/76°	-	57°
2022 Tunnel Vision Marathon Clear conditions throughout the day. 2022	59°/70°	-	55°
2021 Tunnel Vision Marathon Clearing in the afternoon. 2021	62°/69°	-	58°
2019 Tunnel Vision Marathon Partly cloudy throughout the day. 2019	61°/67°	-	55°
2018 Tunnel Vision Marathon Partly cloudy throughout the day. 2018	60°/71°	-	55°
2017 Tunnel Vision Marathon Partly cloudy throughout the day. 2017	57°/68°	-	52°
2016 Tunnel Vision Marathon Partly cloudy throughout the day. 2016	60°/62°	-	54°

More WA Races

Tri-Cities Marathon

2026-10-25 · 42.200km · Richland, WA, USA

Last Chance Marathon

2026-12-31 · 42.200km · Bellingham, WA, USA

Lilac Bloomsday 12K

2027-05-02 · 12.000km · Spokane, WA, USA

Windermere Marathon

2027-05-16 · 42.200km · Spokane, WA, USA

Capital City Marathon

2027-05-16 · 42.200km · Olympia, WA, USA

Green River Marathon

2027-06-05 · Marathon · Kent, WA, USA

Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide