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Race Overview
The Autumn Run takes place on the third Saturday of September in Buena Vista, Colorado, in the upper Arkansas River Valley below the Collegiate Peaks. The half marathon starts near Cottonwood Lake and finishes at McPhelemy Park. A 10K, 5K, and free kids' fun run share the same race weekend.
WikipediaFAQ
When is the 2027 Autumn Run?
The 2027 Autumn Run will be held on Saturday September 18, 2027.
Is the Autumn Run a Boston Marathon Qualfier?
No, the Autumn Run is NOT a Boston Marathon qualifier.
What is the time limit for the Autumn Run?
The time limit for the Autumn Run is 2:00 PM hours.
Autumn Run Weather History
Autumn Run Weather Averages
Average Temp: 54°, Average Low: 40°, Average High: 70°
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 57° | 62° |
| Feel | 57° | 62° |
| Rain | - | - |
| Wind | 3mph | 8mph |
| Dew | 31° | 29° |
| RunScore |  |  |
Autumn Run 2026
Sep 19, 2026
Partly cloudy throughout the day with morning rain.
Low: 43°, High: 68°, Light Rain
| Time | 10AM | 11AM |
|---|---|---|
| Temp |  57° |  61° |
| Feel | 57° | 61° |
| Rain | - | light |
| Wind | 1mph | 1mph |
| Dew | 44° | 42° |
| RunScore | |  |
Autumn Run 2025
Sep 20, 2025
Partly cloudy throughout the day with afternoon rain.
Low: 43°, High: 67°, Light Rain
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 55° | 60° |
| Feel | 55° | 60° |
| Rain | - | - |
| Wind | 5mph | 1mph |
| Dew | 38° | 37° |
| RunScore | | |
Autumn Run 2024
Sep 21, 2024
Becoming cloudy in the afternoon with late afternoon rain.
Low: 37°, High: 65°, Heavy Rain
| Time | 10AM | 11AM |
|---|---|---|
| Temp |  62° | 65° |
| Feel | 62° | 65° |
| Rain | - | - |
| Wind | 3mph | 15mph |
| Dew | 30° | 25° |
| RunScore | | |
Autumn Run 2023
Sep 16, 2023
Clear conditions throughout the day.
Low: 34°, High: 67°
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 50° | 53° |
| Feel | 50° | 53° |
| Rain | - | - |
| Wind | 1mph | 2mph |
| Dew | 38° | 36° |
| RunScore | | |
Autumn Run 2022
Sep 17, 2022
Partly cloudy throughout the day.
Low: 40°, High: 72°
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 58° | 64° |
| Feel | 58° | 64° |
| Rain | - | - |
| Wind | 5mph | 10mph |
| Dew | 34° | 33° |
| RunScore | | |
Autumn Run 2019
Sep 21, 2019
Clear conditions throughout the day.
Low: 35°, High: 69°
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 57° | 62° |
| Feel | 57° | 62° |
| Rain | - | - |
| Wind | 9mph | 14mph |
| Dew | 17° | 14° |
| RunScore | | |
Autumn Run 2018
Sep 15, 2018
Clear conditions throughout the day.
Low: 44°, High: 83°
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 66° | 71° |
| Feel | 66° | 71° |
| Rain | - | - |
| Wind | 1mph | 6mph |
| Dew | 19° | 20° |
| RunScore | | |
Autumn Run 2017
Sep 16, 2017
Partly cloudy throughout the day.
Low: 43°, High: 67°
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 55° |  60° |
| Feel | 55° | 60° |
| Rain | - | - |
| Wind | 2mph | 18mph |
| Dew | 31° | 28° |
| RunScore | | |
Autumn Run 2016
Sep 17, 2016
Clear conditions throughout the day.
Low: 39°, High: 69°
| Time | 10AM | 11AM |
|---|---|---|
| Temp | 53° | 59° |
| Feel | 53° | 59° |
| Rain | - | - |
| Wind | 3mph | 7mph |
| Dew | 31° | 26° |
| RunScore | | |