Race-day weather · Wyndo for runners
Baltimore Marathon weather
October 17, 2026 · Baltimore, MD · scheduled start 8:00 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
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 8:00 AM start. Until then, live hourly data is not available; the history below shows what race morning usually looks like.
Typical start temp
53°F
median of 20 years
A warm year
56°F
75th percentile start temp
Rain at the start
5%
1 of 20 measured years
Race-morning weather history
Mid-October Baltimore is typically 45-60F at the start; occasional unseasonably warm editions are the main risk. 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
53°F
p75 (a warm year): 56°F
Median dew point
45°F
at the start hour
Rain at the start
5%
1 of 20 measured years
Warmest start
69°F
in 2021
Scroll sideways to see all columns.
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2025 | 55°F | 48°F | 3 mph | dry | 67°F |
| 2024 | 46°F | 41°F | 6 mph | dry | 68°F |
| 2023 | 56°F | 51°F | 14 mph | dry | 64°F |
| 2022 | 53°F | 48°F | 7 mph | dry | 70°F |
| 2021 | 69°F | 65°F | 13 mph | dry | 78°F |
| 2020 | 47°F | 38°F | 8 mph | dry | 61°F |
| 2019 | 45°F | 39°F | 4 mph | dry | 62°F |
| 2018 | 57°F | 53°F | 9 mph | dry | 64°F |
| 2017 | 53°F | 47°F | 3 mph | dry | 72°F |
| 2016 | 50°F | 43°F | 2 mph | dry | 64°F |
| 2015 | 48°F | 38°F | 8 mph | dry | 56°F |
| 2014 | 61°F | 53°F | 7 mph | dry | 68°F |
| 2013 | 54°F | 47°F | 6 mph | dry | 63°F |
| 2012 | 53°F | 46°F | 5 mph | dry | 65°F |
| 2011 | 56°F | 44°F | 13 mph | dry | 68°F |
| 2010 | 53°F | 36°F | 15 mph | dry | 64°F |
| 2009 | 45°F | 42°F | 15 mph | 1.9 mm | 47°F |
| 2008 | 49°F | 37°F | 14 mph | dry | 58°F |
| 2007 | 62°F | 52°F | 8 mph | dry | 72°F |
| 2006 | 47°F | 36°F | 8 mph | dry | 60°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
- Paca St & Camden St, next to Oriole Park at Camden Yards
- Scheduled start
- 8:00 AM (America/New_York) — Marathon and 10K start 8:00; 5K 7:30, half marathon 9:30 — per official 2026 schedule of events. Distances start from different downtown corners.
- Field size
- 2025 marathon finishers 1,961 (25th anniversary edition)
- Registration
- open
Wyndo is not affiliated with or endorsed by the Baltimore Marathon (officially the "Baltimore Running Festival") 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.