Out with the Old 5K
Out with the Old 5K race day weather
Cool start — fast day potential, warming through the race
A cool 44°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 56°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Out with the Old 5K
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Out with the Old 5K race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
About the Out with the Old 5K
The 5K is run on the Saturday before Christmas at Sunset Park in Las Vegas, Nevada. It is a single lap of the paved History Walk trails through the park. The loop is flat, with only slight rises and falls, and starts at the same 8:00 AM gun as the longer distances.
Race weekend
Out with the Old 5K FAQ
When is the 2026 Out with the Old 5K?
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Out with the Old 5K weather history
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 48°/53° | - | 35° | |
2024 | | 47°/52° | - | 20° | |
2019 | | 44°/49° | - | 27° | |
2017 |  | 48°/50° | - | 18° |