Skagit Flats Marathon
Burlington, WA, USA · September 13, 2026
Race Day Weather
52°at start
69° high
Light
Dry
Cool start, warming trend ahead
Runners will face a temperature increase from 52°F to 69°F, with average humidity at 75% and a dew point of 52°F. Winds will be light, averaging 4 mph from the SSW, with occasional gusts up to 15 mph. As it warms, runners should consider adjusting their pace and stay on top of hydration.
Race day forecast available in 46 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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