The 2025 event has concluded.

Crater Lake Marathon

Klamath Falls, OR, USA • August 9, 2025
TopDescriptionCourseCommunity

Subscribe

Get updates on the Crater Lake Marathon race forecast and be the first to know if the forecast shifts.

Text Updates

Maximum one update per day. Standard messaging rates apply. Currently only supports USA, UK, and Canada.

Phone Number

Email Updates

By submitting your email you agree to receive weather forecasts and racecast.io updates.

clear-day Clear conditions throughout the day.

No slip. No bounce. Polarized sunglasses built for the run. Goodr OG Sunglasses.When you buy through our links, we may earn a commission.

Area Map

Course Maps

FAQ

Ask a Question about the Crater Lake Marathon

Racecast Concierge (free during beta)

Ask a question about the Crater Lake Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Crater Lake Marathon and general racecast.io updates.

When is the 2025 Crater Lake Marathon?

The 2025 Crater Lake Marathon will be held on Saturday August 9, 2025.

Community

You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR

Historical Weather & Results

RunScore
Run Score: 7
Temp
87°F
Min/Max
62°/87°F
Dew
40°F
Days of Rain
0/2
Wind
10mph
Tap a row for details.
YearLow / HighRain

Crater Lake Marathon 2024 Weather History

Clear conditions throughout the day.

2024
clear-day
59°/ 87°-
Run Score: 7

Crater Lake Marathon 2023 Weather History

Clear conditions throughout the day.

2023
clear-day
65°/ 87°-
Run Score: 8
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR