Weather
Climate Avg| Time | Temp | Dew Pt | Humidity | Wind | Conditions |
|---|---|---|---|---|---|
| Start | 60.6 – 60.6°F | 39° Crisp | 44 – 44% | 12 mph S | Clear sky |
| 8:00 AM | 60.5 – 60.5°F | 38° Crisp | 43 – 43% | 12 mph S | Clear sky |
| 9:00 AM | 67.6 – 67.6°F | 41° Ideal | 38 – 38% | 12 mph SE | Clear sky |
| 10:00 AM | 55.1 – 77.3°F | 36° Crisp | 15 – 60% | 5 mph SE | Clear sky |
| 11:00 AM | 56.7 – 80.6°F | 36° Crisp | 13 – 58% | 7 mph S | Clear sky |
| Finish | 58.7 – 83.5°F | 36° Crisp | 11 – 56% | 6 mph S | Clear sky |
Based on 3-year average for this date. Real forecast available in 63 days.
Elevation Profile
Course Stats
Mile Splits
| Mile | Grade |
|---|---|
| 1 | -3.5% |
| 2 | -1.8% |
| 3 | +0.1% |
| 4 | -2.1% |
| 5 | -2.5% |
| 6 | -1.2% |
| 7 | -3.2% |
| 8 | -4.0% |
| 9 | -0.4% |
| 10 | +0.0% |
| 11 | +2.7% |
| 12 | -0.2% |
| 13 | +0.4% |
| 14 | +0.2% |
| 15 | -0.8% |
| 16 | +1.5% |
| 17 | +0.5% |
| 18 | -0.7% |
| 19 | -1.4% |
| 20 | -1.4% |
| 21 | -4.6% |
| 22 | -4.9% |
| 23 | -6.5% |
| 24 | +7.5% |
| 25 | -0.9% |
| 26 | -2.7% |
| 27 | -3.5% |
RM Difficulty Index
Race-Day Weather History
Race-morning conditions on this date over the past 8 years: median 57°F with a 26°F dew point and 8 mph wind. Heat has rarely been a factor.
| Year | Temp | Dew Pt | Wind | Rain | Sky |
|---|---|---|---|---|---|
| 2025 | 63°F | 37°F | 13 mph | — | Clear |
| 2024 | 66°F | 21°F | 9 mph | — | Clear |
| 2023 | 44°F | 38°F | 6 mph | — | Partly cloudy |
| 2021 | 56°F | 29°F | 6 mph | — | Clear |
| 2020 | 62°F | 14°F | 15 mph | — | Clear |
| 2019 | 48°F | 15°F | 4 mph | — | Clear |
| 2018 | 58°F | 54 °F | 5 mph | — | Drizzle |
| 2016 | 47°F | 23°F | 9 mph | — | Partly cloudy |
Morning conditions (race window) on the St. George Marathon calendar date each year, from the ERA5 reanalysis archive — the race’s usual slot, not necessarily each edition’s exact day.
St. George Marathon Pace Calculator & Race Plan
St. George is one of the fastest marathons in the country thanks to a massive 2,557-foot net elevation drop from the Pine Valley Mountains to downtown St. George. But the course is not all downhill. The Veyo Wall at mile 7 is a brutal climb that catches underprepared runners, and the downhill pounding takes a toll on your quads over the full distance.
Our model is especially important here. The downhill sections cause cumulative quad damage that slows you dramatically in the final miles. The splits account for the actual grade at each point, the quad fatigue from sustained descents, and the October desert heat.
St. George Marathon FAQ
When is the next St. George Marathon?›
The next St. George Marathon is on Saturday, October 3, 2026.
How long is the St. George Marathon?›
The St. George Marathon is 26.2 miles (42.195 km), the standard marathon distance. It runs in Central to St. George, UT.
How much elevation gain does the St. George Marathon have?›
The St. George Marathon has about 1,154 ft (352 m) of climbing and 2,776 ft of descent, with a maximum grade of 19.6%.
Is the St. George Marathon flat, downhill, or hilly?›
The St. George Marathon is a net downhill course, dropping 1621 ft (494 m) from start to finish, with 1,154 ft of climbing along the way.
How hard is the St. George Marathon?›
Runner's Math scores the St. George Marathon 19/100 (Fast) — #37 of 38 marathon courses in our library, ranked by modeled time cost. The profile saves about 0:05 versus a flat course for a runner at 4:00-marathon pace.
What's the weather usually like at the St. George Marathon?›
Over the past 8 years on this date, median race-morning conditions were 57°F with a 26°F dew point and 8 mph wind. Heat has rarely been a factor.