Skagit Flats Marathon
Burlington, WA, USA · September 13, 2026
Race Day Weather
52°at start
69° high
Light
Dry
Mild start, warm finish
Runners will face a temperature rise from 52°F at the start to 69°F by the finish, with an average humidity of 75%. Winds will be light, coming from the SSW at 4 mph. It's advisable to start conservatively to adapt to the warming conditions and stay hydrated throughout the race.
Race day forecast available in 29 days
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Distance: 26.2mi
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FAQ
When is the 2026 Skagit Flats Marathon?
The 2026 Skagit Flats Marathon will be held on Sunday September 13, 2026.
Is the Skagit Flats Marathon a Boston Marathon Qualifier?
Yes, the Skagit Flats Marathon is an official Boston Marathon qualifier.
What will the weather be like for the 2026 Skagit Flats Marathon?
The forecast calls for a high of 72°F and a low of 52°F with a 10% chance of rain.
Historical Weather
Based on 3 years of data
Avg Temp
64°F
L:53° H:64°
RunScore
Conditions
Rain Freq
33%
1 of 3 yrs
Wind6mph
Dew60°F
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 59°/61° | Light | 59° | |
2024 |  | 57°/71° | - | 63° | |
2023 |  | 42°/60° | - | 48° |
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