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Race-day weather · Wyndo for runners

Route 66 Marathon weather

November 22, 2026 · Tulsa, OK · traditional start around 8:00 AM (America/Chicago) — not yet confirmed for 2026. What the start usually feels like, year by year — and a live start-time read once the race confirms its schedule and race week arrives.

Countdown

123 days to race day

The live race-day forecast unlocks 117 days from now, when November 22, 2026 enters the 7-day forecast window. Until then, live hourly data is not available; the history below shows what race morning usually looks like.

The 2026 schedule hasn't been published yet — both the date and start time shown here are carried from earlier editions and aggregators. We'll switch on the live start-time read when the race posts its schedule.

Typical start temp

43°F

median of 20 years

A warm year

46°F

75th percentile start temp

Rain at the start

5%

1 of 20 measured years

Race-morning weather history

Late-November Tulsa is volatile: race-day range runs from 70s F to sub-freezing wind chills in cold-front years. 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 the race confirms its schedule and race week arrives.

Median start temp

43°F

p75 (a warm year): 46°F

Median dew point

33°F

at the start hour

Rain at the start

5%

1 of 20 measured years

Warmest start

62°F

in 2010

Scroll sideways to see all columns.

Start-hour weather by year for the Route 66 Marathon's calendar slot
YearStart tempDew pointWindPrecip (start hr)Day's high
202543°F43°F3 mphdry58°F
202456°F48°F14 mphdry75°F
202350°F45°F7 mph0.2 mm58°F
202221°F17°F3 mphdry49°F
202151°F42°F9 mphdry60°F
202045°F40°F9 mphdry52°F
201932°F30°F6 mphdry68°F
201833°F30°F10 mphdry42°F
201734°F29°F3 mphdry59°F
201631°F28°F7 mphdry60°F
201528°F23°F8 mphdry55°F
201458°F57°F11 mphdry64°F
201323°F11°F6 mphdry30°F
201246°F32°F9 mphdry64°F
201143°F35°F9 mphdry47°F
201062°F58°F14 mphdry74°F
200946°F43°F6 mphdry64°F
200836°F29°F8 mphdry59°F
200744°F39°F5 mphdry72°F
200640°F30°F4 mphdry56°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.

Pace unit

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Race facts

Start line
Downtown Tulsa, ~7th St & Main St (Art Deco district)
Traditional start (not confirmed for 2026)
8:00 AM (America/Chicago) — Official site states marathon/half/relay start Sunday 8:00 AM; 2026-specific schedule not yet published, matches 2025.
Field size
2024 marathon finishers 1,090; half marathon field is larger
Registration
open

Wyndo is not affiliated with or endorsed by the Route 66 Marathon (officially the "Williams Route 66 Marathon") 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.