racecast.ioClear conditions throughout the day.
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Race Overview
As Boise's premier athletic event in the Treasure Valley, we offer a range of distances to suit every runner: full marathon, half marathon, 10K, and 5K. Our race is a Boston qualifier and takes place along the picturesque Boise Greenbelt, from Lucky Peak Reservoir to Southeast Boise, with stunning views of the Boise River.
WikipediaFAQ
When is the 2026 Idaho Running Day Marathon?
The 2026 Idaho Running Day Marathon will be held on Saturday October 17, 2026.
Is the Idaho Running Day Marathon a Boston Marathon Qualfier?
Yes, the Idaho Running Day Marathon is an official Boston Marathon qualifier.
Idaho Running Day Marathon Weather History
Idaho Running Day Marathon Weather Averages
Average Temp: 64°, Average Low: 51°, Average High: 78°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 52° | 51° | 54° | 59° | 63° | 68° | 71° | 74° |
| Feel | 51° | 50° | 54° | 59° | 63° | 66° | 69° | 72° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 4mph | 5mph | 3mph | 3mph | 5mph | 5mph | 7mph | 4mph |
| Dew | 36° | 35° | 36° | 36° | 37° | 35° | 35° | 34° |
| RunScore |  | | | | | | | |
Idaho Running Day Marathon 2025
Oct 18, 2025
Clear conditions throughout the day.
Low: 38°, High: 62°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 40° | 38° | 39° | 43° | 47° | 51° | 54° | 57° |
| Feel | 37° | 36° | 39° | 43° | 47° | 51° | 54° | 57° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 4mph | 4mph | 0mph | 0mph | 1mph | 0mph | 5mph | 3mph |
| Dew | 33° | 32° | 33° | 33° | 33° | 34° | 33° | 32° |
| RunScore | | |  | | | |  | |
Idaho Running Day Marathon 2024
Sep 7, 2024
Clear conditions throughout the day.
Low: 64°, High: 94°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 64° | 64° | 69° | 74° | 80° | 84° | 88° | 92° |
| Feel | 64° | 64° | 69° | 74° | 79° | 81° | 84° | 87° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 3mph | 6mph | 5mph | 6mph | 10mph | 9mph | 10mph | 4mph |
| Dew | 38° | 38° | 39° | 39° | 40° | 36° | 36° | 36° |
| RunScore | | | | | | | | |