XCelsior Half Marathon

Valley Cottage, NY, USA · June 6, 2027·
partly-cloudy-day64°·65° high·Light·Dry
6
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Race Day Weather

partly-cloudy-day
64°at start
75° high
Light
Dry
Your goal
0:00:00

Comfortable temps, warming through the race

Starting at 64°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temperatures rising to 75°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 71% is worth noting for effort level, especially in later miles.

Race day forecast available in 216 days
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Pace Calculator

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Race Info

The XCelsior Half Marathon covers 13.1 miles on the paved loop around Rockland Lake in Rockland Lake State Park, Valley Cottage, New York. Runners start from Parking Field 5 and run a short out-and-back make-up section before settling into repeated laps of the 2.935-mile lake loop. The course is flat and paved with views of the lake, and it finishes at the same spot it starts.

Race weekend

Sunday, June 6
6:00 AMMarathon (26.2 mi)
6:00 AMHalf Marathon (13.1 mi)
7:30 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2027 XCelsior Half Marathon?

The 2027 XCelsior Half Marathon will be held on Sunday June 6, 2027.

What will the weather be like for the 2027 XCelsior Half Marathon?

The forecast calls for a high of 76°F and a low of 62°F with a 12% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 3 years of data
Avg Temp
70°F
L:68° H:72°
RunScore
5
Conditions
Rain Freq
33%
1 of 3 yrs
Wind5mph
Dew62°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
67°/72°-
4
2025
partly-cloudy-day
74°/76°Light
4
2024
partly-cloudy-day
64°/67°-
6