Philadelphia Marathon weather
What will race morning in Philadelphia cost you?
Philadelphia Marathon race mornings since 2021 at Philadelphia International airport: typically 40°F (4°C) at 07:00. Race days ran 36 to 48°F. Live forecast at 07:00: Sunday 22 November 51°F (11°C).
- Date
- Sun, 22 Nov 2026
- First start
- 07:00 local
- Distance
- 26.2 mi
| Year | Air | Dew pt | High by 11:00 | Rain |
|---|---|---|---|---|
| 2025 23 Nov | 36°F | 29°F | 48°F | None |
| 2024 24 Nov | 48°F | 36°F | 52°F | None |
| 2021 21 Nov | 40°F | 36°F | 50°F | None |
Philadelphia International airport station on each race date.
The Philadelphia Marathon starts on Benjamin Franklin Parkway, visiting University City, Manayunk and the Schuylkill River before finishing near the Art Museum. Organiser route
51°F at the gundew point 47°Fwind 2 mph NE, gusts 2
01 · The conditions
Race-day weather
07:00 in Philadelphia
22 November 2026 · 9 days to go
- dew point
- 47°
- humidity
- 85%
- mph wind, NE, gusts 2
- 2
Forecast for 22 November 2026, America/New_York. Open-Meteo, refreshes about hourly. City-level conditions; exposure varies along the course. The advertised first start is 07:00; check your assigned wave.
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Example race: a hot half marathon in Florida
On a computer? Scan with your phone camera to get the app.
Works with Apple HealthGet Philadelphia race-morning weather on your phone.
The app turns race-morning weather into your race plan: your goal pace, your race-day pace, and how to spend it from the start to the finish.
On a computer? Scan with your phone camera to get the app.
Example race: a hot half marathon in Florida
02 · Same effort, different day
What the weather may cost your goal
The race-day forecast looks cool. Expect no weather penalty at your goal.
- Heat and sun0%
- Wind and comfort0%
- Weather total0%
RunWeather’s pace model at your goal effort, over every hour you are on course (07:00 to 11:00 local), weighted by the time you spend in each, using the live city forecast. A planning preview, not a predicted finish. Hills, turns, shelter, fuelling and heat adaptation are not modelled here; rain is left out because a probability is not a measured rain rate. Explore the heat pace calculator.
View even-pace checkpoints
| Distance | Elapsed time |
|---|---|
| 3.1 mi | 0:28:26 |
| 6.2 mi | 0:56:53 |
| 9.3 mi | 1:25:19 |
| 12.4 mi | 1:53:45 |
| 15.5 mi | 2:22:12 |
| 18.6 mi | 2:50:38 |
| 21.7 mi | 3:19:05 |
| 24.9 mi | 3:47:31 |
| 26.2 mi · Finish | 4:00:00 |
In the app
Your race plan, on race morning
Add the Philadelphia Marathon and the app keeps your plan current until the gun.
Goal pace against race-day pace
What your goal is worth on this morning’s weather, per mi and at the finish.
How to spend it
Start, middle and finish, against your average.
What slows you
Heat, wind and hills, each in minutes.
Goal vs race day
What slows you
Example race: a hot half marathon in Florida
Reference
Everything else about race morning
Open any row for the full detail.
Philadelphia Marathon weather by yearSince 2021 · 36 to 48°F at the start
Weather on each race date at Philadelphia International airport, 07:00, this year's first-wave start. 3 races, 36°F to 48°F at the start.
Coolest start36°FTypical start40°FWarmest start48°FPhiladelphia Marathon race-morning weather by year at Philadelphia International airport Year Air 07:00 Dew pt High to 11:00 Rain 2025Nov 23 36°F 29°F 48°F None 2024Nov 24 48°F 36°F 52°F None 2021Nov 21 40°F 36°F 50°F None Hourly reports from the Philadelphia International airport weather station (PHL), about 14 km from the course point, via the Iowa Environmental Mesonet archive. 07:00 is this year's first-wave start; earlier start times are not all verified, so every year is read at the same clock. High and rain cover 07:00 to 11:00. Race dates: World Athletics, AIMS or the organiser. Not a forecast. Data generated 2026-11-12.
The course26.2 mi · 7 to 136 ft
The Philadelphia Marathon starts on Benjamin Franklin Parkway, visiting University City, Manayunk and the Schuylkill River before finishing near the Art Museum.
THE COURSE26.2 mi1×Zoom to drag the route. Keyboard: + / −, arrows, Home to reset.
2025 course. Check the organiser’s map for this year.
ELEVATION7–136 ft0.0 mi- Elevation
- 23 ft
Hover or drag to explore. Use ← → when focused.
The 2025 course from RunWeather’s race catalogue; check the organiser’s current route. Elevation along that course, not confirmed for this year. Official race site ↗01Prepare for the early 07:00 runner start and check conditions through the expected finish, not just at gun time.
02Compare the conditions at your start and expected finish before settling on kit and effort.
03Confirm late changes to the route, start wave and logistics with the organiser.
Race-window historyLast 5 years, race date ±5 days
A range for planning Philadelphia Marathon: weather near Philadelphia on race morning, the last 5 years (2021 to 2025, race date ±5 days). Not a forecast.
Typical start-hour air38°F10th–90th percentile 29°F–48°FDew point / humidity31°F74% relative humidityStart-hour wind6 mphDirection varies by dayHours with rain13%Historical frequency at this hourAIR THROUGH THE RUN38°F → 49°F by +4hThe five-year picture
07:00- Air temperature
- 38°F
- Humidity
- 74%
- Wind
- 6 mph
- Hours with rain
- 13%
Hover or drag to explore. Use ← → when focused. Shading: middle 80% of sampled temperatures.
Five-year average Middle 80% of sampled hoursThe sampled air warms by about 10°F across four hours. Check your expected finish-hour forecast, not just the start.
WIND CONTEXTWhere the breeze came from
WIND FROMNW16 of 55 samples · 29%
Mean 7 mphThe petals show how often the wind came from each direction at the sampled start hour. They do not predict the direction on race day.
A city-point wind rose cannot tell you which parts of the course will be sheltered or exposed. Use the live forecast and the organiser’s route map together.
Method: 55 ERA5 hourly samples at 07:00 local time, across 11 calendar days per year in 2021–2025. The sample uses the hour containing the advertised first start; waves may start later. Grid weather is modelled reanalysis, not an on-course station reading. Open-Meteo Historical Weather API . Data generated 2026-10-28.
November climateAll-hours monthly averages
November averages in Philadelphia, from 2022 to 2024. These are monthly conditions, not a race-day forecast.
- mean temperature
- 48°F
- mean humidity
- 66%
- mean wind
- 7 mph
- hours with rain
- 8%
Monthly, all-hours averages for Philadelphia, 2022–2024. Not past race-day measurements or a forecast. Rain is the share of historical hours with precipitation, not the chance of rain on race day. Source: Open-Meteo ERA5.
Explore running weather in PhiladelphiaPhiladelphia Marathon FAQs7 questions
When is the 2026 Philadelphia Marathon?
Philadelphia Marathon is listed for 22 November 2026. Confirm the latest details on the official event website before travelling.
Is the weather shown a forecast for the Philadelphia Marathon?
Only from about 14 days before the race, when the page shows the live race-day forecast. Before that, you see the weather near the city on the mornings around race day in the last 5 years: what is typical, not what will happen. Monthly averages, when shown, cover every hour of the race month.
What is race morning usually like at the Philadelphia Marathon?
At 07:00, race mornings since 2021 at Philadelphia International airport were typically 40°F (4°C), from 36 to 48°F. Around race day the weather-model estimate near Philadelphia averaged 74% humidity and 10 km/h wind. These are past readings, not a forecast.
Which recent year had the warmest race morning at the Philadelphia Marathon?
2024. At 07:00 that race morning Philadelphia International airport read about 48°F (9°C), against 40°F (4°C) in a typical year.
Which recent year had the windiest race morning at the Philadelphia Marathon?
2024, with about 11 km/h of wind around the 07:00 start. Over the last 5 years the wind here came mostly from the north-west.
How should I pace the Philadelphia Marathon on a warm day?
4:00:00 goal. On a typical race morning here, expect about 4:02 to 4:12. Main factor: cold. If race day comes in warmer, start a little easier than goal pace, run by feel to halfway and drink early. Plan my race gives your splits for the day.
Can past years predict the weather on race day at the Philadelphia Marathon?
No. They show what race morning is usually like, not what this year will bring. Check the live forecast in the last 14 days, look at the hours through your expected finish, and follow the organiser for start and course updates.
Sources and race informationOrganiser, weather data, guide reviewed 2026-09-22
Past race-morning weather: Open-Meteo Historical Weather API, weather near the city from 2021 to 2025, updated 2026-10-28. Not official race-day readings.
Guide reviewed . RunWeather is an independent guide, not the race organiser. Dates, waves and routes can change; the organiser’s latest instructions take priority. Course map: The 2025 course from RunWeather’s race catalogue; check the organiser’s current route.
Philadelphia race morning, on your phone.
Free on iPhone and Android. Your race plan, updated with the forecast until the gun.
On a computer? Scan with your phone camera to get the app.
Example race: a hot half marathon in Florida