Autumn Run

Buena Vista, CO, USA · September 18, 2027

60°·69° high·Light·Dry

Weather

Pace Calc

Race Day Weather

60°at start

74° high

Light

Dry

Comfortable conditions, light breeze

Runners will face temperatures starting at 60°F and rising to 69°F by race end. With light winds from the WSW at 7 mph, conditions are manageable. Given the comfortable humidity at 37%, runners can maintain their pace without significant adjustments, but should stay hydrated throughout.

Race day forecast available in 298 days

7 AM

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Distance: 13.1mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

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Race Info

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. Source

Website

Course Map

FAQ

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 Qualifier?

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.

What will the weather be like for the 2027 Autumn Run?

The forecast calls for a high of 75°F and a low of 46°F with a 4% chance of rain.

Historical Weather

Based on 9 years of data

Avg Temp

62°F

L:57° H:62°

RunScore

Conditions

Rain Freq

11%

1 of 9 yrs

Wind8mph

Dew29°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Autumn Run Partly cloudy throughout the day with morning rain. 2026	57°/61°	Light	43°
2025 Autumn Run Partly cloudy throughout the day with afternoon rain. 2025	55°/60°	-	38°
2024 Autumn Run Becoming cloudy in the afternoon with late afternoon rain. 2024	62°/65°	-	28°
2023 Autumn Run Clear conditions throughout the day. 2023	50°/53°	-	37°
2022 Autumn Run Partly cloudy throughout the day. 2022	58°/64°	-	34°
2019 Autumn Run Clear conditions throughout the day. 2019	57°/62°	-	15°
2018 Autumn Run Clear conditions throughout the day. 2018	66°/71°	-	19°
2017 Autumn Run Partly cloudy throughout the day. 2017	55°/60°	-	29°
2016 Autumn Run Clear conditions throughout the day. 2016	53°/59°	-	28°

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