Casper 10K
Casper, WY, USA · June 6, 2027·
Casper 10K race day weather
51°at start
71° high
Breezy
Dry
Your goal
0:00:00
Comfortable temps, big temp swing
Mild 51°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 71°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
Race day forecast available in 195 days
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Distance: 6.2mi
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About the Casper 10K
The Casper Marathon 10K is the shortest distance of the Casper race weekend, run on the first Sunday in June and starting at the WYO Sports Ranch in Casper, Wyoming. It gives newer runners and families a way to take part in the same event as the marathon and half marathon.
Race weekend
Casper 10K FAQ
When is the 2027 Casper 10K?
The 2027 Casper 10K will be held on Sunday June 6, 2027.
What will the weather be like for the 2027 Casper 10K?
The forecast calls for a high of 73°F and a low of 49°F with a 7% chance of rain. Check our detailed hourly forecast above for the best 10K race plan.
What is the weather usually like for the Casper 10K?
Over the 23 years racecast.io has race-day weather for (2003 to 2026), it averaged 48°F at the start and 53°F by a typical finish. Rain fell during race hours in 1 of those years (2015).
What was the hottest Casper 10K?
Of the 23 years on record, 2004 was the warmest, reaching 70°F during race hours. The coldest start was 2013, at 36°F.
What was the windiest Casper 10K?
Of the 23 years on record, 2004 was the windiest, with wind averaging 13 mph during race hours. The calmest was 2010, at 0 mph.
