The 2026 Three Hearts Marathon has concluded.
Three Hearts Marathon
Race complete
Radenci, Slovenia · May 16, 2026
Race Day Weather
52°at start
58° high
Breezy
Dry
Cool temps, light wind
Runners will face a temperature range from 50°F at the start to a high of 58°F. With a max wind of 13 mph from the SSW and humidity at 67%, hydration will be important. Runners should maintain a steady pace and consider light gear to stay comfortable throughout the race.
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Historical Weather
Based on 4 years of data
Avg Temp
72°F
L:61° H:73°
RunScore
Conditions
Rain Freq
25%
1 of 4 yrs
Wind5mph
Dew52°F
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 56°/63° | - | 39° | |
2024 | | 55°/75° | - | 53° | |
2023 |  | 63°/74° | - | 56° | |
2022 |  | 69°/81° | Light | 59° |