Race-day weather · Wyndo for runners
Mesa Marathon weather
February 13, 2027 · Mesa, AZ · scheduled start 6:30 AM (America/Phoenix). 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
171 days to race day
The live race-day forecast unlocks 165 days from now, when February 13, 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
44°F
median of 20 years
A warm year
46°F
75th percentile start temp
Rain at the start
10%
2 of 20 measured years
Race-morning weather history
Cold desert pre-dawn start at elevation NE of Mesa, warming quickly after sunrise (typical start ~53F/63% humidity, clear). No results listed for 2021 (gap; cause unverified). Historical "Phoenix Marathon" results are ambiguous with a different current race of that name. 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
44°F
p75 (a warm year): 46°F
Median dew point
33°F
at the start hour
Rain at the start
10%
2 of 20 measured years
Warmest start
57°F
in 2017
Scroll sideways to see all columns.
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2026 | 46°F | 43°F | 3 mph | dry | 68°F |
| 2025 | 49°F | 33°F | 3 mph | dry | 73°F |
| 2024 | 42°F | 39°F | 0 mph | 0.2 mm | 50°F |
| 2023 | 46°F | 19°F | 8 mph | dry | 70°F |
| 2022 | 43°F | 26°F | 6 mph | dry | 78°F |
| 2021 | 45°F | 36°F | 3 mph | dry | 67°F |
| 2020 | 38°F | 31°F | 3 mph | dry | 69°F |
| 2019 | 39°F | 28°F | 4 mph | dry | 58°F |
| 2018 | 52°F | 16°F | 6 mph | dry | 74°F |
| 2017 | 57°F | 43°F | 4 mph | dry | 75°F |
| 2016 | 46°F | 31°F | 5 mph | dry | 82°F |
| 2015 | 50°F | 35°F | 5 mph | dry | 81°F |
| 2014 | 42°F | 35°F | 3 mph | dry | 68°F |
| 2013 | 41°F | 35°F | 1 mph | 1.0 mm | 51°F |
| 2012 | 45°F | 29°F | 5 mph | dry | 76°F |
| 2011 | 36°F | 17°F | 7 mph | dry | 77°F |
| 2010 | 40°F | 36°F | 4 mph | dry | 69°F |
| 2009 | 42°F | 29°F | 3 mph | dry | 57°F |
| 2008 | 39°F | 33°F | 5 mph | dry | 72°F |
| 2007 | 49°F | 37°F | 3 mph | dry | 75°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
- Marathon start on N Ellsworth Rd near the Rio Salado Sportsman's Club, NE Mesa (point-to-point downhill; the downtown finish is ~15 mi and ~1,000 ft away). Coordinates are the club's address geocode — approximate. Half and 10K start elsewhere in Mesa.
- Scheduled start
- 6:30 AM (America/Phoenix) — Official 2027: marathon, half, and 10K all 6:30 AM MST at THREE different start lines; single mass start per race, no published elite/wheelchair gun. Marathon buses depart Sloan Park 4:00-5:00 AM (mandatory) — exposure starts ~2.5 h before the gun.
- Field size
- 2026 marathon finishers per FindMyMarathon (aggregator; official results not checked).
- Registration
- open, capacity-limited (registration open as of 2026-08-26)
Wyndo is not affiliated with or endorsed by the Mesa Marathon (officially the "Mesa 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.