racecast.ioPartly cloudy throughout the day.
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Race Overview
Our marathon course is the flattest Boston qualifier in all of Washington state. Registration is limited to 800, so be sure to register soon for one of the best small-town marathons in the state!
WikipediaFAQ
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 Qualfier?
Yes, the Skagit Flats Marathon is an official Boston Marathon qualifier.
Skagit Flats Marathon Weather History
Skagit Flats Marathon Weather Averages
Average Temp: 58°, Average Low: 51°, Average High: 65°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 53° | 54° | 56° | 58° | 59° | 61° | 62° | 64° |
| Feel | 53° | 54° | 56° | 58° | 59° | 61° | 62° | 64° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 2mph | 4mph | 3mph | 5mph | 4mph | 4mph | 4mph | 6mph |
| Dew | 53° | 53° | 56° | 57° | 58° | 57° | 58° | 60° |
| RunScore |  | | |  | | | | |
Skagit Flats Marathon 2025
Sep 14, 2025
Partly cloudy throughout the day with rain in the morning and afternoon.
Low: 54°, High: 61°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 61° | 61° | 59° | 59° |  59° | 59° | 61° | 61° |
| Feel | 61° | 61° | 59° | 59° | 59° | 59° | 61° | 61° |
| Rain | - | - | - | - | light | light | light | - |
| Wind | 5mph | 8mph | 7mph | 6mph | 4mph | 1mph | 2mph | 2mph |
| Dew | 59° | 59° | 59° | 59° | 59° | 59° | 60° | 60° |
| RunScore | | | | |  | | | |
Skagit Flats Marathon 2024
Sep 8, 2024
Partly cloudy throughout the day.
Low: 57°, High: 73°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp |  57° | 59° | 61° | 62° | 64° |  64° | 68° | 71° |
| Feel | 57° | 59° | 61° | 62° | 64° | 64° | 68° | 71° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 4mph | 2mph | 7mph | 7mph | 3mph | 5mph | 8mph |
| Dew | 57° | 59° | 60° | 62° | 64° | 64° | 67° | 70° |
| RunScore | | | | | | | | |
Skagit Flats Marathon 2023
Oct 1, 2023
Clearing in the afternoon.
Low: 42°, High: 62°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp |  43° | 42° | 48° | 52° | 55° | 59° | 59° | 60° |
| Feel | 43° | 42° | 48° | 52° | 55° | 59° | 59° | 60° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 0mph | 0mph | 1mph | 0mph | 7mph | 6mph | 7mph |
| Dew | 43° | 42° | 48° | 50° | 51° | 50° | 48° | 50° |
| RunScore |  | | | | | | | |