Weather
Climate Avg| Time | Temp | Dew Pt | Humidity | Wind | Conditions |
|---|---|---|---|---|---|
| Start | 51.3 – 51.3°F | 46° Ideal | 82 – 82% | 6 mph NW | Partly cloudy |
| 8:00 AM | 51.6 – 51.6°F | 47° Ideal | 84 – 84% | 6 mph NW | Partly cloudy |
| 9:00 AM | 48.2 – 48.2°F | 36° Crisp | 63 – 63% | 6 mph NW | Clear sky |
| 10:00 AM | 57.3 – 57.3°F | 48° Ideal | 71 – 71% | 6 mph N | Partly cloudy |
| 11:00 AM | 59.7 – 59.7°F | 46° Ideal | 61 – 61% | 7 mph N | Drizzle |
| Finish | 60.5 – 60.5°F | 45° Ideal | 57 – 57% | 7 mph N | Drizzle |
Based on 3-year average for this date. Real forecast available in 77 days.
Elevation Profile
Course Stats
Mile Splits
| Mile | Grade |
|---|---|
| 1 | +0.1% |
| 2 | -0.2% |
| 3 | -0.2% |
| 4 | -0.4% |
| 5 | +0.2% |
| 6 | +0.0% |
| 7 | +0.0% |
| 8 | +1.2% |
| 9 | -0.2% |
| 10 | +0.9% |
| 11 | -0.8% |
| 12 | +0.9% |
| 13 | +0.5% |
| 14 | +0.3% |
| 15 | -0.5% |
| 16 | +2.0% |
| 17 | +1.0% |
| 18 | -0.1% |
| 19 | -0.1% |
| 20 | -1.8% |
| 21 | -0.3% |
| 22 | +1.3% |
| 23 | -0.4% |
| 24 | -0.5% |
| 25 | -1.9% |
| 26 | -0.8% |
RM Difficulty Index
Race-Day Weather History
Race-morning conditions on this date over the past 5 years: median 53°F with a 40°F dew point and 8 mph wind. 1 of 5 years were warm enough to slow race pace.
| Year | Temp | Dew Pt | Wind | Rain | Sky |
|---|---|---|---|---|---|
| 2025 | 48°F | 35°F | 6 mph | — | Clear |
| 2022 | 56°F | 55°F | 8 mph | — | Partly cloudy |
| 2019 | 53°F | 40°F | 19 mph | — | Partly cloudy |
| 2018 | 52°F | 40°F | 9 mph | — | Partly cloudy |
| 2016 | 61°F | 58°F | 5 mph | — | Clear |
Morning conditions (race window) on the Baltimore Marathon calendar date each year, from the ERA5 reanalysis archive — the race’s usual slot, not necessarily each edition’s exact day.
Baltimore Marathon FAQ
When is the next Baltimore Marathon?›
The next Baltimore Marathon is on Saturday, October 17, 2026.
How long is the Baltimore Marathon?›
The Baltimore Marathon is 26.2 miles (42.195 km), the standard marathon distance. It runs in Baltimore, MD.
How much elevation gain does the Baltimore Marathon have?›
The Baltimore Marathon has about 1,361 ft (415 m) of climbing and 1,361 ft of descent, with a maximum grade of 17.8%.
Is the Baltimore Marathon flat, downhill, or hilly?›
The Baltimore Marathon starts and finishes at roughly the same elevation (net +0 m). With 1,361 ft of total climbing along the way, the profile rolls even though the net change is small.
How hard is the Baltimore Marathon?›
Runner's Math scores the Baltimore Marathon 47/100 (Challenging) — #6 of 38 marathon courses in our library, ranked by modeled time cost. The profile costs about 2:01 versus a flat course for a runner at 4:00-marathon pace.
What's the weather usually like at the Baltimore Marathon?›
Over the past 5 years on this date, median race-morning conditions were 53°F with a 40°F dew point and 8 mph wind. 1 of 5 years were warm enough to slow race pace.