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Race Overview
The Idaho Falls Marathon offers a scenic and fast course, beginning and ending at Snake River Landing. The marathon course runs the first half west through beautiful southeast Idaho farm country and back through historic New Sweden. The marathon returns to the start point to continue clockwise around the Snake River Greenbelt for the remaining half and finishes where you started.
WikipediaNews
July 26, 2023
Upcoming marathons and other races happening this weekend.
FAQ
When is the 2026 Idaho Falls Marathon?
The 2026 Idaho Falls Marathon will be held on Saturday July 25, 2026.
Idaho Falls Marathon Weather History
Idaho Falls Marathon Weather Averages
Average Temp: 71°, Average Low: 54°, Average High: 88°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 55° | 55° | 59° | 64° | 69° | 74° | 78° | 81° |
| Feel | 54° | 54° | 59° | 64° | 69° | 74° | 77° | 80° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 6mph | 4mph | 6mph | 7mph | 5mph | 8mph | 10mph |
| Dew | 47° | 47° | 49° | 50° | 50° | 49° | 49° | 46° |
| RunScore |  |  | | | |  | | |
Idaho Falls Marathon 2025
Jul 26, 2025
Clear conditions throughout the day.
Low: 45°, High: 85°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 45° | 48° | 52° | 58° | 62° | 70° | 76° | 79° |
| Feel | 41° | 45° | 52° | 58° | 62° | 70° | 76° | 79° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 7mph | 6mph | 3mph | 7mph | 5mph | 0mph | 7mph | 9mph |
| Dew | 37° | 38° | 42° | 41° | 44° | 38° | 36° | 26° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2024
Jul 27, 2024
Partly cloudy throughout the day with late afternoon rain.
Low: 51°, High: 85°, Light Rain
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 52° | 51° | 57° | 65° | 71° | 79° | 81° | 82° |
| Feel | 52° | 51° | 57° | 65° | 71° | 79° | 80° | 81° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 3mph | 3mph | 5mph | 0mph | 5mph | 0mph | 16mph | 13mph |
| Dew | 44° | 46° | 47° | 52° | 52° | 49° | 47° | 48° |
| RunScore | | | | | | |  | |
Idaho Falls Marathon 2023
Jul 29, 2023
Clear conditions throughout the day.
Low: 54°, High: 97°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 54° | 55° | 58° | 63° | 73° | 76° | 79° | 84° |
| Feel | 54° | 55° | 58° | 63° | 73° | 76° | 79° | 83° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 6mph | 3mph | 6mph | 6mph | 7mph | 8mph | 8mph |
| Dew | 47° | 47° | 49° | 52° | 54° | 57° | 60° | 56° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2022
Jul 30, 2022
Clear conditions throughout the day.
Low: 53°, High: 95°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 54° | 53° | 58° | 65° | 73° | 79° | 84° | 87° |
| Feel | 54° | 53° | 58° | 65° | 73° | 79° | 82° | 84° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 7mph | 6mph | 0mph | 5mph | 3mph | 0mph | 3mph | 5mph |
| Dew | 48° | 48° | 52° | 55° | 51° | 49° | 48° | 47° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2021
Jul 31, 2021
Partly cloudy throughout the day with rain clearing later.
Low: 63°, High: 78°, Heavy Rain
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp |  67° |  66° | 64° | 64° | 63° | 67° | 72° | 76° |
| Feel | 67° | 66° | 64° | 64° | 63° | 67° | 72° | 76° |
| Rain | light | - | moderate | moderate | heavy | moderate | - | - |
| Wind | 9mph | 7mph | 9mph | 7mph | 7mph | 11mph | 11mph | 21mph |
| Dew | 61° | 61° | 61° | 62° | 62° | 62° | 62° | 62° |
| RunScore | | |  | | | | | |
Idaho Falls Marathon 2019
Jul 27, 2019
Partly cloudy throughout the day with late afternoon rain.
Low: 63°, High: 83°, Moderate Rain
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 66° | 65° | 66° | 68° | 69° | 70° | 71° | 75° |
| Feel | 66° | 65° | 66° | 68° | 69° | 70° | 71° | 75° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 13mph | 13mph | 14mph | 16mph | 11mph | 8mph | 5mph | 6mph |
| Dew | 49° | 51° | 51° | 51° | 53° | 53° | 52° | 51° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2018
Jul 28, 2018
Partly cloudy throughout the day.
Low: 53°, High: 91°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 54° | 54° | 56° | 63° | 67° | 73° | 74° | 79° |
| Feel | 54° | 54° | 56° | 63° | 67° | 73° | 74° | 79° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 3mph | 5mph | 8mph | 6mph | 6mph | 3mph | 0mph |
| Dew | 50° | 49° | 50° | 49° | 48° | 46° | 48° | 42° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2017
Jul 29, 2017
Clear conditions throughout the day.
Low: 50°, High: 90°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 50° | 50° | 57° | 62° | 68° | 73° | 78° | 83° |
| Feel | 50° | 50° | 57° | 62° | 68° | 73° | 78° | 81° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 7mph | 5mph | 3mph | 0mph | 0mph | 3mph | 3mph | 3mph |
| Dew | 49° | 49° | 52° | 53° | 53° | 55° | 54° | 49° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2016
Jul 30, 2016
Clear conditions throughout the day.
Low: 57°, High: 94°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 57° | 59° | 61° | 69° | 76° | 82° | 86° | 85° |
| Feel | 57° | 59° | 61° | 69° | 76° | 80° | 83° | 82° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 5mph | 3mph | 0mph | 0mph | 5mph | 3mph | 6mph | 16mph |
| Dew | 45° | 46° | 48° | 47° | 44° | 45° | 42° | 44° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2015
Jul 25, 2015
Clear conditions throughout the day.
Low: 46°, High: 87°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 46° | 48° | 54° | 63° | 67° | 72° | 76° | 81° |
| Feel | 46° | 45° | 54° | 63° | 67° | 72° | 76° | 80° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 6mph | 0mph | 3mph | 5mph | 5mph | 7mph | 11mph |
| Dew | 44° | 45° | 50° | 50° | 48° | 47° | 45° | 42° |
| RunScore | | | | | | | | |
Idaho Falls Marathon 2014
Jul 19, 2014
Clear conditions throughout the day.
Low: 55°, High: 88°
| Time | 6AM | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 57° | 55° | 62° | 68° | 71° | 74° | 77° | 82° |
| Feel | 57° | 55° | 62° | 68° | 71° | 74° | 77° | 80° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 5mph | 5mph | 14mph | 20mph | 15mph | 17mph | 17mph |
| Dew | 39° | 40° | 38° | 36° | 37° | 40° | 42° | 43° |
| RunScore | | | | | | | | |