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Race-day weather · Wyndo for runners

Philadelphia Marathon weather

November 22, 2026 · Philadelphia, PA · scheduled start 7:00 AM (America/New_York). 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

132 days to race day

The live race-day forecast unlocks 126 days from now, when November 22, 2026 enters the 7-day forecast window — a start-time read for the scheduled 7:00 AM start. Until then, no made-up long-range forecast — the history below is what race morning usually looks like.

Typical start temp

39°F

median of 20 years

A warm year

42°F

75th percentile start temp

Rain at the start

10%

2 of 20 measured years

Race-morning weather history

Late-November Philadelphia is often cold and blustery along the Schuylkill; sub-freezing wind chills at the start are common. 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

39°F

p75 (a warm year): 42°F

Median dew point

31°F

at the start hour

Rain at the start

10%

2 of 20 measured years

Warmest start

59°F

in 2017

Start-hour weather by year for the Philadelphia Marathon's calendar slot
YearStart tempDew pointWindPrecip (start hr)Day's high
202534°F28°F0 mphdry55°F
202448°F38°F11 mphdry55°F
202336°F27°F6 mphdry57°F
202233°F11°F10 mphdry36°F
202137°F34°F3 mphdry55°F
202047°F32°F8 mphdry56°F
201941°F38°F7 mph0.8 mm47°F
201835°F30°F3 mphdry48°F
201759°F52°F17 mph0.5 mm60°F
201640°F23°F15 mphdry44°F
201548°F41°F7 mphdry51°F
201439°F26°F4 mphdry56°F
201325°F1°F16 mphdry33°F
201234°F27°F6 mphdry51°F
201150°F43°F9 mphdry65°F
201037°F28°F5 mphdry52°F
200939°F35°F5 mphdry56°F
200826°F16°F5 mphdry39°F
200741°F32°F9 mphdry44°F
200642°F33°F5 mphdry49°F

Slot climatology, honestly framed: 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, because what the slot serves up is exactly the question. 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.

Training for this race?

Wyndo can email you when conditions turn good for a run near Philadelphia, PA — and stay quiet when they don't. (A race-week forecast alert keyed to race day is coming next.)

Get an alert when it's a good time for running

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Race facts

Start line
22nd St & Benjamin Franklin Parkway, near the Philadelphia Museum of Art
Scheduled start
7:00 AM (America/New_York) — Runners/walkers 7:00 AM; push-rim wheelchairs 6:55 AM; half marathon runs Saturday Nov 21.
Field size
2025 marathon finishers 12,377; 2026 field expanded to 20,000 bibs under new TIAA sponsorship
Registration
open (2026 marathon already listed as sold out)

Wyndo is not affiliated with or endorsed by the Philadelphia Marathon (officially the "TIAA Philadelphia 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.