Three Hearts Marathon

Radenci, Slovenia • May 16, 2026

Race Day Weather

partly-cloudy-day
52°
65° high
Light
Dry

Mild temps, steady conditions

Runners will face mild temperatures starting at 55°F and peaking at 65°F. With a light wind from the SSW at 6 mph and humidity around 67%, conditions are favorable. Hydration will be key, and runners should consider adjusting their pace as temperatures rise. No rain is expected, allowing for optimal racing conditions.

Race day forecast available in 29 days
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Area Map

Course Map

Course Map Unavailable

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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 65°F and a low of 51°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
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