Race-day weather · Wyndo for runners
Oklahoma City Memorial Marathon weather
April 25, 2027 · Oklahoma City, OK · scheduled start 6:30 AM (America/Chicago). What the start usually feels like, year by year — and a live start-time read once the race is inside the 7-day forecast window.
Countdown
242 days to race day
The live race-day forecast unlocks 236 days from now, when April 25, 2027 enters the 7-day forecast window — a start-time read for the scheduled 6:30 AM start. Until then, live hourly data is not available; the history below shows what race morning usually looks like.
Typical start temp
55°F
median of 20 years
A warm year
61°F
75th percentile start temp
Rain at the start
25%
5 of 20 measured years
Race-morning weather history
Late-April Oklahoma severe-weather risk is documented: the 2014 start was delayed ~2 hours by thunderstorms and an April 2022 delay for wind/lightning was reported; the race runs a WBGT flag system with Perry Weather up to event cancellation. Exclude the October 2020 (virtual) and Oct 3, 2021 editions from April climatology; 2011 ran May 1. Wyndo tracks what this calendar slot has actually served up at the start hour — temperature, dew point, wind, and rain — including the years when weather canceled or disrupted the race, and reads the live forecast for the start once race week arrives.
Median start temp
55°F
p75 (a warm year): 61°F
Median dew point
47°F
at the start hour
Rain at the start
25%
5 of 20 measured years
Warmest start
72°F
in 2014
Scroll sideways to see all columns.
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2026 | 63°F | 61°F | 11 mph | dry | 83°F |
| 2025 | 64°F | 64°F | 8 mph | dry | 78°F |
| 2024 | 61°F | 61°F | 13 mph | 1.1 mm | 74°F |
| 2023 | 47°F | 42°F | 4 mph | dry | 71°F |
| 2022 | 60°F | 57°F | 11 mph | 1.3 mm | 66°F |
| 2021 | 49°F | 47°F | 11 mph | dry | 78°F |
| 2020 | 48°F | 42°F | 5 mph | dry | 78°F |
| 2019 | 51°F | 41°F | 10 mph | dry | 81°F |
| 2018 | 56°F | 46°F | 9 mph | dry | 82°F |
| 2017 | 46°F | 42°F | 15 mph | dry | 53°F |
| 2016 | 61°F | 52°F | 14 mph | dry | 79°F |
| 2015 | 57°F | 53°F | 10 mph | dry | 72°F |
| 2014 | 72°F | 66°F | 16 mph | 2.0 mm | 83°F |
| 2013 | 47°F | 46°F | 6 mph | dry | 81°F |
| 2012 | 66°F | 63°F | 6 mph | dry | 79°F |
| 2011 | 53°F | 47°F | 6 mph | 0.2 mm | 58°F |
| 2010 | 53°F | 45°F | 14 mph | dry | 73°F |
| 2009 | 70°F | 65°F | 16 mph | dry | 74°F |
| 2008 | 47°F | 41°F | 13 mph | 0.5 mm | 60°F |
| 2007 | 51°F | 46°F | 5 mph | dry | 82°F |
Slot climatology: each row is the weather at this race's usual calendar slot and start hour (ERA5 reanalysis at the start line) — including years when the edition was canceled or moved. A computed slot date is not a claim the race ran that day.
Your heat-adjusted goal for the marathon
The same cited model as the full calculator, pointed at this race: the median start-hour conditions this calendar slot has served up — climatology, not a forecast.
Your race-day brief
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Race facts
- Start line
- The 9:03 Gate (west Gate of Time) of the Oklahoma City National Memorial & Museum, N Harvey Ave — official course page wording. Coordinates approximate (derived from the Memorial's west gate, not a course GPS file). Finish at Scissortail Park since 2019.
- Scheduled start
- 6:30 AM (America/Chicago) — Official 2027 marathon page: 6:30 AM CT first mass start (marathon, half, quarter share it); wheelchair-division gun 6:25 AM. Full 2027 weekend schedule not yet published; corral detail carries from 2026 coverage.
- Field size
- 2026 marathon finishers per FindMyMarathon (aggregator — the official site claims only "record numbers"). Weekend total ~30,000 across 6 races per media coverage.
- Registration
- open (no lottery language found — unverified beyond absence)
Wyndo is not affiliated with or endorsed by the Oklahoma City Memorial Marathon (officially the "Oklahoma City Memorial Marathon — Run to Remember") or its organizers. Race names are used descriptively to identify the event; schedules and start times belong to the race — always confirm details on the official site. Weather guidance here is informational, never medical advice, and event alert flags on race day belong to the race's own medical team.