Jack and Jills Downhill Marathon (Saturday)

North Bend, WA, USA · July 24, 2027·
partly-cloudy-day51°→ 63° finish·Light·Dry
8
Register

Race Day Weather

partly-cloudy-day
51°at start
63° at finish
Light
Dry
Your goal
0:00:00

Cool start, warming finish

Runners will face a comfortable start at 51°F, gradually warming to 69°F by the finish. With humidity at 63% and light wind of 6 mph, conditions should remain manageable. The most challenging segments will be from miles 8 to 16 with persistent headwinds, so pacing adjustments may be necessary. Hydration should be prioritized as temperatures rise, especially in the warmer valley at the finish.

This course drops 860 ft from start to finish, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 51° and finish around 9:55 AM in 63°.

Race day forecast available in 273 days
Along your raceStart line only
partly-cloudy-night10
partly-cloudy-night10
partly-cloudy-day10
Start
partly-cloudy-day10
mi 7
partly-cloudy-day8
mi 13
partly-cloudy-day7
Finish
partly-cloudy-day7
partly-cloudy-day6
partly-cloudy-day6
partly-cloudy-day5
partly-cloudy-day5

Pace Calculator

26.2mi
0:00:00
HH:MM:SS
Pace
—

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

Common Goals:

Get forecast alerts for Jack and Jills Downhill Marathon (Saturday)

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

Race Plan

Get your personalized Jack and Jills Downhill Marathon (Saturday) 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

Race Info

The Jack & Jill's Downhill Marathon in North Bend, Washington, offers runners a fast, net-downhill course along the scenic Palouse to Cascades State Park Trail. Starting near the iconic Snoqualmie Tunnel, the marathon features a gradual descent of approximately 1,300 feet over 26.2 miles, providing an ideal setting for personal bests and Boston Marathon qualifications. The course is predominantly shaded, with a smooth, hard-packed gravel surface that is gentle on the legs, enhancing the overall running experience.

Race weekend

Saturday, July 24
6:00 AMMarathon (26.2 mi)
6:30 AMHalf Marathon (13.1 mi)

FAQ

When is the 2027 Jack and Jills Downhill Marathon (Saturday)?

The 2027 Jack and Jills Downhill Marathon (Saturday) will be held on Saturday July 24, 2027.

Is the Jack and Jills Downhill Marathon (Saturday) a Boston Marathon Qualifier?

Yes, the Jack and Jills Downhill Marathon (Saturday) is an official Boston Marathon qualifier.

What is the time limit for the Jack and Jills Downhill Marathon (Saturday)?

The time limit for the Jack and Jills Downhill Marathon (Saturday) is 6.5 hours.

What will the weather be like for the 2027 Jack and Jills Downhill Marathon (Saturday)?

The forecast calls for a high of 76°F and a low of 51°F with a 2% chance of rain.

Historical Weather

Based on 4 years of data
Avg Temp
54°F
L:49° H:59°
RunScore
9
Conditions
Rain Freq
0%
0 of 4 yrs
Wind4mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
52°/60°-
8
2025
cloudy
47°/56°-
9
2024
clear-day
49°/60°-
9
2023
cloudy
51°/62°-
8