The 2023 event has concluded.

Grand Lake Marathon

Celina, OH, USA • September 23, 2023

Race Day Weather

46°

76° high

Breezy

Dry

Cool start, warming trend

Runners will face a temperature increase from 46°F at the start to 74°F by race's end, with humidity averaging 64%. Winds will be light at 11 mph from the east-northeast, with occasional gusts up to 22 mph. Runners should start conservatively to adjust for rising temperatures and maintain hydration throughout.

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

Pre-raceRace windowPost-race

Course Map

FAQ

When is the 2023 Grand Lake Marathon?

The 2023 Grand Lake Marathon will be held on Saturday September 23, 2023.

What will the weather be like for the 2023 Grand Lake Marathon?

The forecast calls for a high of 76°F and a low of 46°F with a 0% chance of rain.

Historical Weather

Based on 8 years of data

Avg Temp

75°F

L:57° H:75°

RunScore

Conditions

Rain Freq

25%

2 of 8 yrs

Wind8mph

Dew54°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2023 Grand Lake Marathon Clear conditions throughout the day. 2023	49°/74°	-	47°
2023 Grand Lake Marathon Partly cloudy throughout the day. 2023	53°/69°	-	53°
2022 Grand Lake Marathon Partly cloudy throughout the day. 2022	61°/81°	-	59°
2019 Grand Lake Marathon Partly cloudy throughout the day with rain clearing later. 2019	64°/80°	Light	64°
2018 Grand Lake Marathon Partly cloudy throughout the day. 2018	46°/63°	-	45°
2017 Grand Lake Marathon Clear conditions throughout the day. 2017	63°/90°	-	63°
2016 Grand Lake Marathon Partly cloudy throughout the day. 2016	64°/73°	-	65°
2015 Grand Lake Marathon Partly cloudy throughout the day with morning rain. 2015	60°/74°	Light	55°