Adirondack Half Marathon

Schroon Lake, NY, USA · September 26, 2027·
partly-cloudy-day58°·66° high·Light·Dry
6
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Race Day Weather

partly-cloudy-day
58°at start
70° high
Light
Dry
Your goal
0:00:00

Comfortable temps, warming through the race

Mild 58°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 70°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 68% is worth noting for effort level, especially in later miles.

Race day forecast available in 338 days
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Pace Calculator

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Race Plan

Get your personalized Adirondack Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Adirondack Half Marathon follows the second half of the marathon course, starting in the hamlet of Adirondack at the marathon's 13.1-mile mark. The first five to six miles are flat along the east shore of Schroon Lake, then long, gentle hills on Route 9 lead north into the village of Schroon Lake. The race finishes at the pavilion off Leland Avenue near the lake.

Race weekend

Saturday, September 25
9:30 AM10K (6.2 mi)
9:30 AM5K (3.1 mi)
Sunday, September 26
8:00 AMMarathon (26.2 mi)
9:00 AMHalf Marathon (13.1 mi)
Area Map

Course Map

FAQ

When is the 2027 Adirondack Half Marathon?

The 2027 Adirondack Half Marathon will be held on Sunday September 26, 2027.

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

The forecast calls for a high of 70°F and a low of 53°F with a 10% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 29 years of data
Avg Temp
59°F
L:56° H:62°
RunScore
7
Conditions
Rain Freq
14%
4 of 29 yrs
Wind5mph
Dew52°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
cloudy
57°/58°Light
8
2025
clear-day
65°/72°-
4
2024
cloudy
59°/66°-
6
2023
clear-day
53°/66°-
7
2022
partly-cloudy-day
65°/67°-
5
2021
partly-cloudy-day
57°/58°Light
7
2019
clear-day
60°/69°-
6
2018
clear-day
48°/57°-
9
2017
clear-day
66°/76°-
4
2016
clear-day
48°/55°-
10
2015
clear-day
54°/62°-
8
2014
partly-cloudy-day
61°/69°-
6
2013
rain
56°/59°Light
8
2012
rain
52°/56°Light
10
2011
cloudy
63°/67°-
5
2010
partly-cloudy-day
54°/59°-
8
2009
partly-cloudy-day
43°/54°-
10
2008
partly-cloudy-day
54°/59°-
8
2007
partly-cloudy-day
48°/54°-
10
2006
cloudy
60°/63°-
6
2005
cloudy
55°/58°-
8
2004
partly-cloudy-day
57°/62°-
7
2003
cloudy
56°/60°-
7
2002
partly-cloudy-day
65°/67°-
4
2001
partly-cloudy-day
59°/66°-
6
2000
cloudy
47°/57°-
8
1999
clear-day
44°/55°-
10
1998
cloudy
66°/72°-
4
1997
partly-cloudy-day
41°/50°-
10