Bound for Boston Marathon (Seattle) Half Marathon

Olympia, WA, USA · June 13, 2027·
partly-cloudy-day52°·55° high·Light·Dry
9
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Bound for Boston Marathon (Seattle) Half Marathon race day weather

partly-cloudy-day
52°at start
61° high
Light
Rain possible
Your goal
0:00:00

Comfortable temps, chance of rain

Mild 52°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 61°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready. Moderate humidity at 79% is worth noting for effort level, especially in later miles.

Race day forecast available in 203 days
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Pace Calculator

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Race Plan

Get your personalized Bound for Boston Marathon (Seattle) Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

About the Bound for Boston Marathon (Seattle) Half Marathon

The Bound for Boston Half Marathon is 13.1 miles run as repeated laps of a flat, USATF-certified 1-mile loop around Olympia High School in Olympia, Washington. The loop is laid out for steady pacing, with a mile split at every lap and a personal aid table where runners can leave their own drinks and gels. The half marathon starts together with the marathon on a Sunday morning in June, and slower runners keep to the right so faster runners can take the shortest path.

Race weekend

Sunday, June 13
6:30 AMMarathon (26.2 mi)
6:30 AMHalf Marathon (13.1 mi)
Area Map
Course Map

Bound for Boston Marathon (Seattle) Half Marathon FAQ

When is the 2027 Bound for Boston Marathon (Seattle) Half Marathon?

The 2027 Bound for Boston Marathon (Seattle) Half Marathon will be held on Sunday June 13, 2027.

What is the time limit for the Bound for Boston Marathon (Seattle) Half Marathon?

The time limit for the Bound for Boston Marathon (Seattle) Half Marathon is 4 hours.

What will the weather be like for the 2027 Bound for Boston Marathon (Seattle) Half Marathon?

The forecast calls for a high of 70°F and a low of 50°F with a 11% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Bound for Boston Marathon (Seattle) Half Marathon weather history

Based on 2 years of data
Avg Temp
46°F
L:43° H:49°
RunScore
10
Conditions
Rain Freq
0%
0 of 2 yrs
Wind1mph
Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
42°/48°-
10
2024
partly-cloudy-day
44°/49°-
10