The 2026 DoLittle Half Marathon has concluded.

DoLittle Half Marathon

Race complete
Oconomowoc, WI, USA · September 12, 2026·
partly-cloudy-day65°·74° high·Breezy·Rain possible
4
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DoLittle Half Marathon race day weather

partly-cloudy-day
65°at start
78° high
Breezy
Dry
Your goal
0:00:00

Warm start, warming through the race, moderate wind, rain likely

Starting at 65°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temperatures rising to 78°F through the course will gradually increase perceived effort in the second half. Moderate winds around 14mph may affect pacing on open sections of the course. Rain is likely — waterproof your phone and bib, and consider a disposable poncho for the corral. Moderate humidity at 78% is worth noting for effort level, especially in later miles.

partly-cloudy-night6
partly-cloudy-day6
partly-cloudy-day5
clear-day4
rain3
partly-cloudy-day3
partly-cloudy-day3
cloudy3
cloudy3
cloudy3
cloudy3

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About the DoLittle Half Marathon

The DoLittle Half Marathon is two out-and-back trips along the Lake Country Trail between Roosevelt Park in Oconomowoc and Valley Road. The paved trail course is flat and fast, with the start and finish at the north end of the park and a turnaround at the start/finish line on each lap. It runs on the Saturday of race weekend alongside the full marathon, 10K and 5K.

Race weekend

Saturday, September 12
8:00 AMMarathon (26.2 mi)
8:00 AMHalf Marathon (13.1 mi)
8:00 AM10K (6.2 mi)
8:00 AM5K (3.1 mi)
Area Map
Course Map

DoLittle Half Marathon FAQ

When is the 2026 DoLittle Half Marathon?

The 2026 DoLittle Half Marathon will be held on Saturday September 12, 2026.

What is the time limit for the DoLittle Half Marathon?

The time limit for the DoLittle Half Marathon is 6 hours.

What will the weather be like for the 2026 DoLittle Half Marathon?

The forecast calls for a high of 78°F and a low of 61°F with a 100% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the weather usually like for the DoLittle Half Marathon?

Over the 11 years racecast.io has race-day weather for (2016 to 2026), it averaged 60°F at the start and 68°F by a typical finish. Rain fell during race hours in 4 of those years (2019, 2020, 2025 and 2026).

What was the hottest DoLittle Half Marathon?

Of the 11 years on record, 2017 was the warmest, reaching 80°F during race hours. The coldest start was 2021, at 35°F.

What was the windiest DoLittle Half Marathon?

Of the 11 years on record, 2020 was the windiest, with wind averaging 11 mph during race hours. The calmest was 2018, at 1 mph.

DoLittle Half Marathon weather history

Based on 11 years of data
Avg Temp
64°F
L:60° H:68°
RunScore
5
Conditions
Rain Freq
36%
4 of 11 yrs
Wind6mph
Dew59°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
65°/74°Light
4
2025
rain
64°/68°Light
5
2024
clear-day
64°/73°-
4
2023
clear-day
60°/67°-
7
2022
cloudy
65°/71°-
5
2021
clear-day
35°/45°-
10
2020
rain
61°/66°Light
6
2019
rain
64°/68°Moderate
4
2018
clear-day
51°/62°-
8
2017
clear-day
67°/80°-
4
2016
partly-cloudy-day
65°/70°-
5