The 2025 event has concluded.

Casper Marathon

Casper, WY, USA • June 1, 2025
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rain Clear conditions throughout the day with late afternoon rain.

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The Visit Casper Marathon seeks to create a unique and memorable race experience for all its participants whether they are first time runners or elite athletes. We strive for a safe, enjoyable, and yet a challenging race events that pushes racers to achieve their best within our supportive running atmosphere and the Casper Wyoming community. Source

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When is the 2025 Casper Marathon?

The 2025 Casper Marathon will be held on Sunday June 1, 2025.

Is the Casper Marathon a Boston Marathon Qualfier?

Yes, the Casper Marathon is an official Boston Marathon qualifier.

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Historical Weather & Results

RunScore
Run Score: 7
Temp
73°F
Min/Max
52°/74°F
Dew
40°F
Days of Rain
3/21
Wind
11mph
Tap a row for details.
YearLow / HighRain

Casper Marathon 2024 Weather History

Becoming cloudy in the afternoon with afternoon rain.

2024
clear-day
57°/ 75°-
Run Score: 8

Casper Marathon 2023 Weather History

Partly cloudy throughout the day with afternoon rain.

2023
partly-cloudy-day
55°/ 63°Light
Run Score: 8

Casper Marathon 2022 Weather History

Becoming cloudy in the afternoon.

2022
clear-day
53°/ 72°-
Run Score: 8

Casper Marathon 2021 Weather History

Clear conditions throughout the day.

2021
clear-day
57°/ 77°-
Run Score: 8

Casper Marathon 2019 Weather History

Clear conditions throughout the day.

2019
clear-day
51°/ 77°-
Run Score: 8

Casper Marathon 2018 Weather History

Clear conditions throughout the day.

2018
clear-day
46°/ 76°-
Run Score: 8

Casper Marathon 2017 Weather History

Clear conditions throughout the day.

2017
clear-day
55°/ 82°-
Run Score: 8

Casper Marathon 2016 Weather History

Partly cloudy throughout the day.

2016
partly-cloudy-day
50°/ 81°-
Run Score: 8

Casper Marathon 2015 Weather History

Partly cloudy throughout the day with rain clearing later.

2015
cloudy
54°/ 71°-
Run Score: 9

Casper Marathon 2014 Weather History

Partly cloudy throughout the day with rain.

2014
partly-cloudy-day
49°/ 65°Light
Run Score: 7

Casper Marathon 2013 Weather History

Clear conditions throughout the day.

2013
clear-day
46°/ 79°-
Run Score: 7

Casper Marathon 2012 Weather History

Clear conditions throughout the day with afternoon rain.

2012
clear-day
59°/ 83°-
Run Score: 8

Casper Marathon 2011 Weather History

Clear conditions throughout the day.

2011
clear-day
48°/ 85°-
Run Score: 7

Casper Marathon 2010 Weather History

Clear conditions throughout the day.

2010
clear-day
50°/ 74°-
Run Score: 8

Casper Marathon 2009 Weather History

Cloudy skies throughout the day with rain.

2009
cloudy
40°/ 48°Light
Run Score: 7

Casper Marathon 2008 Weather History

Partly cloudy throughout the day.

2008
clear-day
41°/ 63°-
Run Score: 6

Casper Marathon 2007 Weather History

Clear conditions throughout the day.

2007
clear-day
48°/ 71°-
Run Score: 8

Casper Marathon 2006 Weather History

Clear conditions throughout the day.

2006
clear-day
55°/ 85°-
Run Score: 8

Casper Marathon 2005 Weather History

Clear conditions throughout the day.

2005
clear-day
52°/ 72°-
Run Score: 7

Casper Marathon 2004 Weather History

Clear conditions throughout the day.

2004
clear-day
70°/ 91°-
Run Score: 6

Casper Marathon 2003 Weather History

Partly cloudy throughout the day with late afternoon rain.

2003
cloudy
52°/ 72°-
Run Score: 9
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