Race-day weather · Wyndo for runners
Cap10K weather
April 11, 2027 · Austin, TX · traditional start around 8:00 AM (America/Chicago) — not yet confirmed for 2027. 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
226 days to race day
The live race-day forecast unlocks 220 days from now, when April 11, 2027 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 2027 start time hasn't been published yet — the 8:00 AM start shown here is carried from a previous edition. We'll switch on the live start-time read when the race posts its schedule.
Typical start temp
64°F
median of 9 years
A warm year
67°F
75th percentile start temp
Rain at the start
11%
1 of 9 measured years
Race-morning weather history
Early-April Austin: warm and humid, real thunderstorm/heat risk — typical-climate characterization, UNVERIFIED; ERA5 supplies actuals. WEATHER-SENSITIVE HISTORY: 2019 cancelled ~90 min before the gun for severe weather; 2020 cancelled (COVID); 2021 virtual-only. These belong in the climatological record as the scheduled slots (noted). Wyndo tracks what past editions of the race actually served up at the start hour — temperature, dew point, wind, and rain, and reads the live forecast for the start once the race confirms its schedule and race week arrives.
Median start temp
64°F
p75 (a warm year): 67°F
Median dew point
56°F
at the start hour
Rain at the start
11%
1 of 9 measured years
Warmest start
70°F
in 2026
Scroll sideways to see all columns.
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2026 | 70°F | 69°F | 10 mph | 0.2 mm | 79°F |
| 2025 | 45°F | 36°F | 13 mph | dry | 58°F |
| 2024 | 67°F | 66°F | 6 mph | dry | 81°F |
| 2023 | 56°F | 41°F | 11 mph | dry | 76°F |
| 2022 | 64°F | 56°F | 13 mph | dry | 87°F |
| 2018 | 43°F | 37°F | 3 mph | dry | 66°F |
| 2017 | 53°F | 45°F | 10 mph | dry | 76°F |
| 2016 | 67°F | 64°F | 10 mph | dry | 82°F |
| 2015 | 69°F | 68°F | 4 mph | dry | 81°F |
Each row is the weather at a real past edition's date and this race's current start hour (ERA5 reanalysis at the start line).
Your heat-adjusted goal for the 10k
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
- South Congress Avenue at the Ann W. Richards Congress Avenue Bridge over Lady Bird Lake; the course runs NORTH up Congress past the Texas Capitol and finishes at Vic Mathias (Auditorium) Shores. Start is the bridge, NOT the Capitol steps. Coordinate approximate (Nominatim, bridge).
- Traditional start (not confirmed for 2027)
- 8:00 AM (America/Chicago) — Mass start 8:00 AM (2025 Statesman guide) [V]. 2027 start time carried forward from the standing 8:00 AM gun.
- Field size
- Big REGISTERED≫FINISHERS gap: 2026 = 19,570 finishers / 24,427 registered; 2025 = 19,320 finishers / 24,169 registered. The official history page counts REGISTRANTS (24k), not finishers — use finishers (~19.5k) for field size. Texas' largest 10K; Runner's World-ranked #4 most-popular US 10K on 2025 finishers.
- Registration
- open (Ventures Endurance / Enmotive)
Wyndo is not affiliated with or endorsed by the Cap10K (officially the "Statesman Cap10K") 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.