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Race Overview
Idaho Running Day is a multi-distance running event in Boise, Idaho, held each fall along the Boise Greenbelt. It offers a marathon, half marathon, 10K, and 5K, starting near Lucky Peak Reservoir at Sandy Point Park and finishing in southeast Boise along the Boise River. The event was previously known as the Idaho Running Company Marathon before being rebranded as Idaho Running Day in 2025.
WikipediaFAQ
When is the 2026 Idaho Running Day?
The 2026 Idaho Running Day will be held on Saturday October 17, 2026.
Is the Idaho Running Day a Boston Marathon Qualfier?
Yes, the Idaho Running Day is an official Boston Marathon qualifier.
What is the time limit for the Idaho Running Day?
The time limit for the Idaho Running Day is 7 hours.
Idaho Running Day Weather History
Idaho Running Day Weather Averages
Average Temp: 67°, Average Low: 53°, Average High: 82°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 53° | 56° | 62° | 66° | 71° | 75° | 79° | 81° |
| Feel | 52° | 56° | 62° | 66° | 70° | 73° | 76° | 78° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 5mph | 3mph | 2mph | 5mph | 5mph | 6mph | 4mph | 3mph |
| Dew | 36° | 38° | 37° | 38° | 37° | 36° | 35° | 34° |
| RunScore |  | | | | | | |  |
Idaho Running Day 2025
Oct 18, 2025
Clear conditions throughout the day.
Low: 38°, High: 62°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp |  38° |  39° | 43° | 47° | 51° | 54° | 57° | 60° |
| Feel | 36° | 39° | 43° | 47° | 51° | 54° | 57° | 60° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 4mph | 0mph | 0mph | 1mph | 0mph | 5mph | 3mph | 0mph |
| Dew | 32° | 33° | 33° | 33° | 34° | 33° | 32° | 28° |
| RunScore | | | | | |  | | |
Idaho Running Day 2024
Sep 7, 2024
Clear conditions throughout the day.
Low: 64°, High: 94°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 64° | 69° | 74° | 80° | 84° | 88° | 92° | 93° |
| Feel | 64° | 69° | 74° | 79° | 81° | 84° | 87° | 88° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 5mph | 6mph | 10mph | 9mph | 10mph | 4mph | 5mph |
| Dew | 38° | 39° | 39° | 40° | 36° | 36° | 36° | 36° |
| RunScore | | | | | | | | |
Idaho Running Day 2023
Sep 16, 2023
Clear conditions throughout the day.
Low: 57°, High: 91°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 57° | 61° | 69° | 73° | 79° | 83° | 87° | 89° |
| Feel | 57° | 61° | 69° | 73° | 79° | 80° | 84° | 85° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 5mph | 1mph | 5mph | 5mph | 4mph | 4mph | 5mph |
| Dew | 38° | 41° | 40° | 40° | 40° | 38° | 38° | 37° |
| RunScore | | | | | | | | |