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Rebecca’s Private Idaho weather
What race day has been like in Ketchum, Idaho, the forecast when it’s close, and how to see the wind and rain on every stretch of the course.
- When
- Early to mid-September
- Base
- Ketchum and Sun Valley, Idaho
- Format
- Multi-day: stage race days plus a Saturday mass ride
- Saturday routes
- Baked Potato, French Fry and Tater Tot
- Terrain
- Mountain gravel roads
Live weather
Loading the weather in Ketchum…
Race day in past years
The weather in Ketchum on September 12, 7 AM to 6 PM, in each of the last 10 years. The race isn’t always on that exact date, but it shows what that time of year is like.
Loading 10 years of weather…
Measured for the base town. Out on the course, especially higher up, it can be colder, windier or wetter.
Forecast the course, stretch by stretch
The town forecast only tells part of the story. Route Forecast times the weather to where you’ll be on the course.
- Get the course from the race: a GPX file, or a Ride with GPS or Strava route link. Races usually publish it a few weeks before.
- Open Route Forecast and drop in the file or paste the link.
- Set the race start time and your pace. You’ll see temperature, rain and headwind, tailwind or crosswind for every stretch.
About the course
- Gravel roads in the mountains around Sun Valley. The Saturday routes roll out together, and the longer ones climb into the high country.
- Weather: Early September in the Wood River Valley usually means cold mornings and warm, dry afternoons. Mornings at this elevation can be near freezing.
Questions
What’s the weather usually like at Rebecca’s Private Idaho?
Early September in the Wood River Valley usually means cold mornings and warm, dry afternoons. Mornings at this elevation can be near freezing. This page shows the weather in Ketchum, Idaho on September 12 in each of the last 10 years, from 7 AM to 6 PM: temperature, wind and rain.
When is Rebecca’s Private Idaho?
Early to mid-September. In 2026 it ran September 9–12, with the main gravel rides on Saturday.
Can I get a forecast for the whole Rebecca’s Private Idaho course?
Yes. Get the course GPX file, or a Ride with GPS or Strava route link, from the race, and open it in Route Forecast (free, no account). Set your start time and pace, and it shows the temperature, rain and headwind, tailwind or crosswind on every stretch of the course, timed to when you’ll be there.
When will the race-day forecast be available?
Weather models forecast about two weeks ahead. Once the race date is set, check this page about two weeks before. Until then it shows the weather there now and race-day weather from past years.