Windsor Marathon

Windsor, CO, USA • October 4, 2026
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Race Day Weather

partly-cloudy-day
46°
69° high
Breezy
Dry

Cool morning, warming afternoon

Runners will face a temperature increase from 46°F to 69°F, with average humidity at 54% and a dew point of 38°F. Wind will be moderate at 9 mph from the SE, with gusts up to 35 mph. As the day warms, runners should consider pacing conservatively in the early miles to manage the heat.

Race day forecast available in 191 days
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Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
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Weather Adj.
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Common Goals:

Starting and ending at The Island at Pelican Lakes in Water Valley, with a great after party including food, drinks, music, kids zone and more in Windsor, Colorado. There's a distance for everyone with a kids fun run, 5k, 10k, half and full marathon. Source

Area Map

Course Map

Course Map Unavailable

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FAQ

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When is the 2026 Windsor Marathon?

The 2026 Windsor Marathon will be held on Sunday October 4, 2026.

Historical Weather

Based on 5 years of data
Avg Temp
69°F
L:43° H:70°
RunScore
9
Conditions
Rain Freq
0%
0 of 5 yrs
Wind6mph
Dew32°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Windsor Marathon

Partly cloudy throughout the day with late afternoon rain.

2025
partly-cloudy-night
42°/66°-
8

2024 Windsor Marathon

Clear conditions throughout the day.

2024
clear-night
44°/70°-
9

2023 Windsor Marathon

Clear conditions throughout the day.

2023
clear-night
44°/77°-
8

2022 Windsor Marathon

Clear conditions throughout the day.

2022
clear-night
41°/71°-
8

2021 Windsor Marathon

Partly cloudy throughout the day.

2021
partly-cloudy-night
46°/66°-
9
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