The 2026 Three Hearts Marathon has concluded.

Three Hearts Marathon

Race complete
Radenci, Slovenia · May 16, 2026
clear-day51°·58° high·Light·Dry
9
Weather
Course
FAQ
History

Race Day Weather

clear-day
51°at start
58° high
Breezy
Dry

Cool start, steady conditions

Runners will face a pleasant temperature trend from 50°F at the start to 58°F by the finish. With a light SW wind at 8 mph and humidity at 69%, conditions are favorable. Runners should maintain their pace while staying hydrated, as the humidity may feel a bit higher than the temperature suggests.

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Race Info

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Course Map

Course Map Unavailable

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FAQ

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When is the 2026 Three Hearts Marathon?

The 2026 Three Hearts Marathon will be held on Saturday May 16, 2026.

What will the weather be like for the 2026 Three Hearts Marathon?

The forecast calls for a high of 58°F and a low of 48°F with a 0% chance of rain.

Historical Weather

Based on 4 years of data
Avg Temp
72°F
L:61° H:73°
RunScore
8
Conditions
Rain Freq
25%
1 of 4 yrs
Wind5mph
Dew52°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Three Hearts Marathon

Partly cloudy throughout the day.

2025
cloudy
56°/63°-
9

2024 Three Hearts Marathon

Partly cloudy throughout the day.

2024
partly-cloudy-day
55°/75°-
8

2023 Three Hearts Marathon

Partly cloudy throughout the day with morning rain.

2023
clear-day
63°/74°-
8

2022 Three Hearts Marathon

Partly cloudy throughout the day with rain in the morning and afternoon.

2022
rain
69°/81°Light
8
Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

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