The 2025 event has concluded.

Idaho Falls Marathon

Idaho Falls, ID, USA • July 26, 2025
TopDescriptionCourseCommunity
Register

Subscribe

Get updates on the Idaho Falls 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.

The astonishing national bestseller and hugely entertaining story that completely changed the way we run. Born to Run by Christopher McDougall.When you buy through our links, we may earn a commission.

Area Map

Course Maps

FAQ

Ask a Question about the Idaho Falls Marathon

Racecast Concierge (free during beta)

Ask a question about the Idaho Falls 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 Idaho Falls Marathon and general racecast.io updates.

When is the 2025 Idaho Falls Marathon?

The 2025 Idaho Falls Marathon will be held on Saturday July 26, 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
81°F
Min/Max
55°/82°F
Dew
48°F
Days of Rain
1/10
Wind
10mph
Tap a row for details.
YearLow / HighRain

Idaho Falls Marathon 2024 Weather History

Partly cloudy throughout the day with late afternoon rain.

2024
clear-night
51°/ 82°-
Run Score: 8

Idaho Falls Marathon 2023 Weather History

Clear conditions throughout the day.

2023
clear-night
54°/ 84°-
Run Score: 8

Idaho Falls Marathon 2022 Weather History

Clear conditions throughout the day.

2022
clear-night
53°/ 87°-
Run Score: 8

Idaho Falls Marathon 2021 Weather History

Partly cloudy throughout the day with rain clearing later.

2021
rain
63°/ 76°Moderate
Run Score: 6

Idaho Falls Marathon 2019 Weather History

Partly cloudy throughout the day with late afternoon rain.

2019
cloudy
65°/ 75°-
Run Score: 8

Idaho Falls Marathon 2018 Weather History

Partly cloudy throughout the day.

2018
clear-night
54°/ 79°-
Run Score: 8

Idaho Falls Marathon 2017 Weather History

Clear conditions throughout the day.

2017
clear-night
50°/ 83°-
Run Score: 8

Idaho Falls Marathon 2016 Weather History

Clear conditions throughout the day.

2016
clear-night
57°/ 86°-
Run Score: 8

Idaho Falls Marathon 2015 Weather History

Clear conditions throughout the day.

2015
clear-night
46°/ 81°-
Run Score: 8

Idaho Falls Marathon 2014 Weather History

Clear conditions throughout the day.

2014
clear-night
55°/ 82°-
Run Score: 7
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