Starved Rock Country Marathon

Ottawa, IL, USA · May 8, 2027

53°·66° high·Breezy·Dry

Weather

Race Day Weather

53°at start

71° high

Breezy

Dry

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Cool start, warming trend

Runners will face a temperature rise from 53°F at the start to 66°F by the finish. With a light SE breeze at 10 mph, it should be manageable, but the humidity at 58% suggests a need for hydration. Adjust pacing to account for the warming conditions as the race progresses.

Race day forecast available in 176 days

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Distance: 26.2mi

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Race Info

The Starved Rock Country Marathon takes place each May in Ottawa, Illinois, alongside a half marathon, a 10K and a 5K on the same weekend. The marathon starts and finishes at the corner of LaSalle Street and Jefferson Street in downtown Ottawa, and the course runs along the Illinois River through Starved Rock State Park, passing its sandstone bluffs. The half marathon starts separately, inside the state park itself, rather than downtown. The race returns for its 12th edition in 2027.

Website

Race weekend

Saturday, May 8

7:00 AMMarathon (26.2 mi)

7:00 AM10K (6.2 mi)

7:00 AM5K (3.1 mi)

7:30 AMHalf Marathon (13.1 mi)

Course Map

FAQ

When is the 2027 Starved Rock Country Marathon?

The 2027 Starved Rock Country Marathon will be held on Saturday May 8, 2027.

Is the Starved Rock Country Marathon a Boston Marathon Qualifier?

Yes, the Starved Rock Country Marathon is an official Boston Marathon qualifier.

What is the time limit for the Starved Rock Country Marathon?

The time limit for the Starved Rock Country Marathon is 6 hours.

What will the weather be like for the 2027 Starved Rock Country Marathon?

The forecast calls for a high of 72°F and a low of 52°F with a 12% chance of rain.

Historical Weather

Based on 11 years of data

Avg Temp

59°F

L:53° H:65°

RunScore

Conditions

Rain Freq

18%

2 of 11 yrs

Wind7mph

Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Starved Rock Country Marathon Becoming cloudy in the afternoon. 2026	53°/67°	-	52°
2025 Starved Rock Country Marathon Clear conditions throughout the day. 2025	51°/78°	-	36°
2024 Starved Rock Country Marathon Partly cloudy throughout the day with early morning rain. 2024	52°/65°	-	44°
2023 Starved Rock Country Marathon Partly cloudy throughout the day with late afternoon rain. 2023	61°/68°	-	63°
2022 Starved Rock Country Marathon Clear conditions throughout the day. 2022	66°/78°	-	62°
2019 Starved Rock Country Marathon Partly cloudy throughout the day with afternoon rain. 2019	47°/50°	-	38°
2018 Starved Rock Country Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2018	48°/54°	Light	48°
2017 Starved Rock Country Marathon Clear conditions throughout the day. 2017	52°/70°	-	49°
2016 Starved Rock Country Marathon Partly cloudy throughout the day with early morning rain. 2016	42°/46°	-	35°
2015 Starved Rock Country Marathon Partly cloudy throughout the day with rain. 2015	65°/69°	Light	65°
2014 Starved Rock Country Marathon Clear conditions throughout the day. 2014	51°/70°	-	46°