Garmin Olathe Marathon

Olathe, KS, USA · April 25, 2026
partly-cloudy-day51°·62° high·Breezy·Dry
8
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Race Day Weather

partly-cloudy-day
51°at start
65° high
Breezy
Dry

Cool start, gentle winds

Runners will face a gradual temperature increase from 52°F at the start to 64°F by the finish, with average humidity at 75%. Winds will start as a headwind in the first mile, shifting to a tailwind from miles 15 to 26, making those segments more favorable. Adjust pacing early in the race and focus on hydration, especially when temperatures rise in the later miles.

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Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
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Race Plan

Get your personalized Garmin Olathe Marathon race plan

Weather-adjusted pacing, per-mile terrain splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.

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Race Info

Join us for a marathon, half marathon, 10k, Munchkin Marathon or Senior Walk through the beautiful streets and trails of Olathe. This year marks the 22nd anniversary of the event (click here to learn more about the history!) The city of Olathe is 20 minutes southwest of downtown Kansas City, located in Johnson County, Kansas. Come experience our Midwest charm in the Land of Oz. Source

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FAQ

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When is the 2026 Garmin Olathe Marathon?

The 2026 Garmin Olathe Marathon will be held on Saturday April 25, 2026.

Is the Garmin Olathe Marathon a Boston Marathon Qualifier?

Yes, the Garmin Olathe Marathon is an official Boston Marathon qualifier.

What is the time limit for the Garmin Olathe Marathon?

The time limit for the Garmin Olathe Marathon is 6.5 hours.

What will the weather be like for the 2026 Garmin Olathe Marathon?

The forecast calls for a high of 66°F and a low of 51°F with a 30% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 20 years of data
Avg Temp
61°F
L:48° H:61°
RunScore
7
Conditions
Rain Freq
25%
5 of 20 yrs
Wind14mph
Dew44°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2025 Garmin Olathe Marathon

Cloudy skies throughout the day.

2025
cloudy
54°/56°-
8

2024 Garmin Olathe Marathon

Partly cloudy throughout the day.

2024
partly-cloudy-day
42°/52°-
8

2023 Garmin Olathe Marathon

Partly cloudy throughout the day.

2023
clear-day
34°/45°-
6

2019 Garmin Olathe Marathon

Clear conditions throughout the day.

2019
clear-day
34°/54°-
8

2018 Garmin Olathe Marathon

Partly cloudy throughout the day with rain in the morning and afternoon.

2018
cloudy
47°/54°Light
9

2017 Garmin Olathe Marathon

Clearing in the afternoon with early morning rain.

2017
cloudy
47°/61°-
7

2016 Garmin Olathe Marathon

Partly cloudy throughout the day.

2016
clear-day
56°/69°-
7

2015 Garmin Olathe Marathon

Partly cloudy throughout the day with rain in the morning and afternoon.

2015
clear-day
61°/62°Light
7

2014 Garmin Olathe Marathon

Partly cloudy throughout the day with morning rain.

2014
partly-cloudy-day
54°/72°Light
7

2013 Garmin Olathe Marathon

Partly cloudy throughout the day.

2013
clear-day
32°/50°-
8

2012 Garmin Olathe Marathon

Clear conditions throughout the day.

2012
clear-day
36°/61°-
8

2011 Garmin Olathe Marathon

Clearing in the afternoon with early morning rain.

2011
cloudy
37°/52°-
4

2010 Garmin Olathe Marathon

Clear conditions throughout the day.

2010
clear-day
46°/71°-
7

2009 Garmin Olathe Marathon

Clear conditions throughout the day with late afternoon rain.

2009
clear-day
44°/60°-
6

2008 Garmin Olathe Marathon

Partly cloudy throughout the day.

2008
cloudy
39°/48°-
6

2007 Garmin Olathe Marathon

Partly cloudy throughout the day with rain clearing later.

2007
partly-cloudy-night
58°/63°Light
7

2006 Garmin Olathe Marathon

Clear conditions throughout the day.

2006
clear-day
61°/70°-
8

2005 Garmin Olathe Marathon

Clear conditions throughout the day.

2005
clear-day
56°/77°-
7

2004 Garmin Olathe Marathon

Partly cloudy throughout the day with late afternoon rain.

2004
clear-day
70°/79°-
6

2003 Garmin Olathe Marathon

Partly cloudy throughout the day with rain.

2003
clear-day
59°/70°Light
7

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