racecast.ioPartly cloudy throughout the day with a chance of rain.
Details
Light Rain
45%
Pre-Race
Race
Post-Race
Training Metrics and Recovery Insights, Beautiful AMOLED Display. Garmin Forerunner 265 Running Smartwatch.
When you buy through our links, we may earn a commission.
Wanna to know when the weather changes? .
Race Overview
The All-Out Fall Fest Half Marathon in Westminster, Colorado, offers runners a scenic journey along the Big Dry Creek Trail, leading to the picturesque Standley Lake Regional Park. Participants enjoy a mix of paved and gravel paths, with breathtaking views of the Flatirons and a notable stretch near the dam. The event embraces 80s nostalgia, adding a fun and energetic vibe to the race experience.
WikipediaFAQ
When is the 2026 All-Out Fallfest Half Marathon?
The 2026 All-Out Fallfest Half Marathon will be held on Saturday September 19, 2026.
What is the time limit for the All-Out Fallfest Half Marathon?
The time limit for the All-Out Fallfest Half Marathon is 4 hours.
All-Out Fallfest Half Marathon Course Map
Loading Course Map...
All-Out Fallfest Half Marathon Weather History
All-Out Fallfest Half Marathon Weather Averages
Average Temp: 64°, Average Low: 49°, Average High: 78°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 50° | 54° | 61° | 66° | 70° |
| Feel | 50° | 53° | 61° | 66° | 70° |
| Rain | - | - | - | - | - |
| Wind | 2mph | 1mph | 2mph | 2mph | 4mph |
| Dew | 40° | 42° | 41° | 40° | 39° |
| RunScore |  | | | | |
All-Out Fallfest Half Marathon 2025
Sep 13, 2025
Clear conditions throughout the day with rain.
Low: 55°, High: 74°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 55° | 55° | 66° | 71° | 72° |
| Feel | 55° | 55° | 66° | 71° | 72° |
| Rain | - | - | - | - | - |
| Wind | 2mph | 0mph | 0mph | 4mph | 5mph |
| Dew | 44° | 47° | 45° | 45° | 45° |
| RunScore | | | | | |
All-Out Fallfest Half Marathon 2024
Sep 14, 2024
Clear conditions throughout the day.
Low: 55°, High: 88°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 55° | 59° | 67° | 74° | 74° |
| Feel | 55° | 59° | 67° | 74° | 74° |
| Rain | - | - | - | - | - |
| Wind | 0mph | 0mph | 3mph | 1mph | 0mph |
| Dew | 38° | 39° | 39° | 39° | 40° |
| RunScore | | | |  | |
All-Out Fallfest Half Marathon 2023
Sep 16, 2023
Clear conditions throughout the day.
Low: 46°, High: 74°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 46° | 50° | 56° | 61° | 65° |
| Feel | 46° | 50° | 56° | 61° | 65° |
| Rain | - | - | - | - | - |
| Wind | 2mph | 1mph | 2mph | 1mph | 1mph |
| Dew | 40° | 42° | 39° | 39° | 39° |
| RunScore | | |  | | |
All-Out Fallfest Half Marathon 2022
Sep 16, 2022
Partly cloudy throughout the day with afternoon rain.
Low: 50°, High: 76°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 50° | 55° | 62° | 67° | 70° |
| Feel | 50° | 55° | 62° | 67° | 70° |
| Rain | - | - | - | - | - |
| Wind | 1mph | 1mph | 1mph | 1mph | 5mph |
| Dew | 46° | 48° | 46° | 44° | 45° |
| RunScore | | | | | |
All-Out Fallfest Half Marathon 2021
Sep 18, 2021
Clear conditions throughout the day.
Low: 46°, High: 90°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 46° | 51° | 59° | 67° | 73° |
| Feel | 46° | 51° | 59° | 67° | 73° |
| Rain | - | - | - | - | - |
| Wind | 3mph | 0mph | 0mph | 0mph | 0mph |
| Dew | 40° | 43° | 42° | 41° | 35° |
| RunScore | | | | | |
All-Out Fallfest Half Marathon 2020
Sep 19, 2020
Clear conditions throughout the day.
Low: 52°, High: 84°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 52° | 58° | 66° | 71° | 76° |
| Feel | 52° | 58° | 66° | 71° | 76° |
| Rain | - | - | - | - | - |
| Wind | 3mph | 2mph | 5mph | 7mph | 6mph |
| Dew | 42° | 46° | 47° | 42° | 39° |
| RunScore | | | | | |
All-Out Fallfest Half Marathon 2019
Sep 21, 2019
Becoming cloudy in the afternoon.
Low: 51°, High: 75°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 53° | 56° | 63° | 66° | 69° |
| Feel | 53° | 56° | 63° | 66° | 69° |
| Rain | - | - | - | - | - |
| Wind | 3mph | 1mph | 1mph | 6mph | 8mph |
| Dew | 27° | 29° | 32° | 32° | 32° |
| RunScore | | | | | |
All-Out Fallfest Half Marathon 2018
Sep 22, 2018
Clear conditions throughout the day.
Low: 46°, High: 85°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 47° | 53° | 61° | 68° | 76° |
| Feel | 47° | 53° | 61° | 68° | 76° |
| Rain | - | - | - | - | - |
| Wind | 1mph | 1mph | 3mph | 1mph | 4mph |
| Dew | 40° | 38° | 38° | 36° | 32° |
| RunScore | | | | | |
All-Out Fallfest Half Marathon 2017
Sep 23, 2017
Partly cloudy throughout the day with rain.
Low: 44°, High: 53°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp |  47° | 48° |  50° | 51° | 52° |
| Feel | 45° | 46° | 48° | 51° | 52° |
| Rain | - | - | - | - | - |
| Wind | 4mph | 4mph | 4mph | 3mph | 6mph |
| Dew | 41° | 41° | 41° | 40° | 41° |
| RunScore | | | | | |
All-Out Fallfest Half Marathon 2015
Sep 26, 2015
Clear conditions throughout the day.
Low: 49°, High: 85°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM |
|---|---|---|---|---|---|
| Temp | 49° | 52° | 59° | 65° | 70° |
| Feel | 49° | 52° | 59° | 65° | 70° |
| Rain | - | - | - | - | - |
| Wind | 1mph | 2mph | 1mph | 0mph | 2mph |
| Dew | 42° | 45° | 45° | 45° | 45° |
| RunScore | | | | | |