Garmin Olathe Marathon

Olathe, KS, USA · April 24, 2027
partly-cloudy-day52°·64° high·Breezy·Dry
8
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Race Day Weather

partly-cloudy-day
52°at start
68° high
Breezy
Dry

Mild start, rising temps ahead

Runners will face a starting temperature of 52°F, rising to 65°F by the finish, with humidity at 67%. Wind will provide a tailwind from miles 2-12, but a headwind from miles 13-27 may require pacing adjustments. As temperatures rise, starting conservatively is recommended to maintain energy for the latter stages of the race.

Race day forecast available in 216 days
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Pace Calculator

Distance: 26.2mi
0:00:00
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Race Plan

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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 2027 Garmin Olathe Marathon?

The 2027 Garmin Olathe Marathon will be held on Saturday April 24, 2027.

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 2027 Garmin Olathe Marathon?

The forecast calls for a high of 69°F and a low of 49°F with a 13% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 21 years of data
Avg Temp
61°F
L:49° H:62°
RunScore
7
Conditions
Rain Freq
24%
5 of 21 yrs
Wind13mph
Dew44°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2026 Garmin Olathe Marathon

Clear conditions throughout the day.

2026
clear-day
54°/73°-
8

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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