Three Hearts Marathon

Radenci, Slovenia · May 16, 2026
partly-cloudy-day57°·65° high·Light·Dry
9

Race Day Weather

partly-cloudy-day
57°at start
65° high
Light
Dry

Mild temps, light winds

Runners will face temperatures starting at 55°F and peaking at 65°F. With a gentle breeze from the SSE at 6 mph, humidity levels around 67% may feel slightly muggy. Runners should consider a conservative start to adjust for the warming trend and stay hydrated throughout the race.

Race day forecast available in 5 days
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9

Get forecast alerts for Three Hearts Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

Area Map

Course Map

FAQ

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
cloudy
56°/63°-
9
2024
partly-cloudy-day
55°/75°-
8
2023
clear-day
63°/74°-
8
2022
rain
69°/81°Light
8