Race-day weather · Wyndo for runners
Kansas City Marathon weather
October 17, 2026 · Kansas City, MO · scheduled start 7:00 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
87 days to race day
The live race-day forecast unlocks 81 days from now, when October 17, 2026 enters the 7-day forecast window — a start-time read for the scheduled 7:00 AM start. Until then, live hourly data is not available; the history below shows what race morning usually looks like.
Typical start temp
46°F
median of 20 years
A warm year
53°F
75th percentile start temp
Rain at the start
10%
2 of 20 measured years
Race-morning weather history
Mid-October Kansas City weather swings widely year to year, from near-freezing starts to 80F afternoons. 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
46°F
p75 (a warm year): 53°F
Median dew point
40°F
at the start hour
Rain at the start
10%
2 of 20 measured years
Warmest start
66°F
in 2017
Scroll sideways to see all columns.
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2025 | 63°F | 62°F | 2 mph | dry | 73°F |
| 2024 | 46°F | 35°F | 7 mph | dry | 76°F |
| 2023 | 53°F | 46°F | 6 mph | dry | 79°F |
| 2022 | 41°F | 35°F | 1 mph | dry | 69°F |
| 2021 | 43°F | 33°F | 8 mph | dry | 65°F |
| 2020 | 53°F | 31°F | 17 mph | dry | 70°F |
| 2019 | 53°F | 49°F | 4 mph | 1.1 mm | 64°F |
| 2018 | 44°F | 36°F | 6 mph | dry | 63°F |
| 2017 | 66°F | 57°F | 16 mph | dry | 77°F |
| 2016 | 66°F | 62°F | 12 mph | dry | 76°F |
| 2015 | 46°F | 29°F | 8 mph | dry | 58°F |
| 2014 | 42°F | 40°F | 5 mph | dry | 61°F |
| 2013 | 33°F | 32°F | 8 mph | dry | 62°F |
| 2012 | 40°F | 40°F | 3 mph | dry | 70°F |
| 2011 | 39°F | 31°F | 4 mph | dry | 73°F |
| 2010 | 51°F | 39°F | 9 mph | dry | 80°F |
| 2009 | 42°F | 40°F | 5 mph | dry | 50°F |
| 2008 | 43°F | 40°F | 4 mph | dry | 62°F |
| 2007 | 53°F | 41°F | 11 mph | dry | 81°F |
| 2006 | 50°F | 43°F | 6 mph | 0.4 mm | 56°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.
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Race facts
- Start line
- Oak St at 47th St / Theis Park, near the Nelson-Atkins Museum (4701 Oak St)
- Scheduled start
- 7:00 AM (America/Chicago) — Marathon and half 7:00, 10K 7:30, 5K 7:45 per official 2026 registration page and race FAQ.
- Field size
- 2025 marathon finishers 1,546; organizers plan for ~2,000 marathon entrants
- Registration
- open
Wyndo is not affiliated with or endorsed by the Kansas City Marathon (officially the "Garmin Kansas City 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.