Windsor Marathon
Windsor, CO, USA · October 4, 2026
Race Day Weather
46°at start
71° high
Light
Dry
Cool start — fast day potential, big temp swing
A cool 46°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 71°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
Race day forecast available in 97 days
Pre-raceRace windowPost-race
Pace Calculator
Distance: 26.2mi
0:00:00
HH:MM:SS
Get forecast alerts for Windsor Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Historical Weather
Based on 5 years of data
Avg Temp
69°F
L:43° H:70°
RunScore
Conditions
Rain Freq
0%
0 of 5 yrs
Wind6mph
Dew32°F
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 42°/66° | - | 42° | |
2024 |  | 44°/70° | - | 31° | |
2023 | | 44°/77° | - | 34° | |
2022 | | 41°/71° | - | 34° | |
2021 | | 46°/66° | - | 31° |
More CO Races
Estes Park Marathon
2026-06-21 · Estes Park, CO, USA
Leadville Trail Marathon
2026-06-27 · Leadville, CO, USA
Hardrock 100
2026-07-10 · Silverton, CO, USA
Aspen Valley Marathon
2026-07-25 · Basalt, CO, USA
Silverton Alpine Marathon
2026-07-18 · Silverton, CO, USA
Boulder Rez Marathon
2026-08-15 · Boulder, CO, USA