Fox Valley Marathon

St. Charles, IL, USA • September 21, 2025
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partly-cloudy-day Partly cloudy throughout the day.

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Combining small race atmosphere with big race amenities, the Fox Valley Marathon, Half Marathon, and Fall Final 20 are ideal for both veterans looking for a fast race, as well as first timers looking for an uncrowded, supportive, family-friendly race setting. Starting and ending in historic downtown St Charles, IL, the course winds through picturesque Geneva, Batavia, North Aurora, and Aurora to a spectacular finish across the Fox River that can be seen from over a mile away. The course offers fantastic viewing spots for families and supporters, as well as frequent and well positioned aid stations that are staffed by the most supportive volunteer teams of any race you’ve run. Source

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When is the 2025 Fox Valley Marathon?

The 2025 Fox Valley Marathon will be held on Sunday September 21, 2025.

Is the Fox Valley Marathon a Boston Marathon Qualfier?

Yes, the Fox Valley Marathon is an official Boston Marathon qualifier.

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Historical Weather

RunScore
Run Score: 7
Temp
73°F
Min/Max
58°/74°F
Dew
57°F
Days of Rain
4/14
Wind
8mph
Tap a row for details.
YearLow / HighRainResults

Fox Valley Marathon 2024 Weather History

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

2024
partly-cloudy-day
67°/ 72°Light
Run Score: 7

Fox Valley Marathon 2023 Weather History

Partly cloudy throughout the day with a chance of rain throughout the day.

2023
rain
59°/ 64°Light
Run Score: 6

Fox Valley Marathon 2022 Weather History

Partly cloudy throughout the day with late afternoon rain.

2022
cloudy
69°/ 82°-
Run Score: 7

Fox Valley Marathon 2021 Weather History

Clear conditions throughout the day.

2021
clear-day
59°/ 89°-
Run Score: 7

Fox Valley Marathon 2019 Weather History

Partly cloudy throughout the day with a chance of rain throughout the day.

2019
cloudy
72°/ 78°Light
Run Score: 6

Fox Valley Marathon 2018 Weather History

Clear conditions throughout the day.

2018
clear-day
65°/ 88°-
Run Score: 7

Fox Valley Marathon 2017 Weather History

Partly cloudy throughout the day.

2017
partly-cloudy-day
67°/ 83°-
Run Score: 7

Fox Valley Marathon 2016 Weather History

Clear conditions throughout the day.

2016
clear-day
55°/ 76°-
Run Score: 8

Fox Valley Marathon 2015 Weather History

Clear conditions throughout the day.

2015
clear-day
48°/ 70°-
Run Score: 8

Fox Valley Marathon 2014 Weather History

Partly cloudy throughout the day with early morning rain.

2014
clear-day
55°/ 63°-
Run Score: 7

Fox Valley Marathon 2013 Weather History

Clear conditions throughout the day.

2013
clear-day
43°/ 66°-
Run Score: 8

Fox Valley Marathon 2012 Weather History

Clear conditions throughout the day.

2012
clear-day
47°/ 75°-
Run Score: 8

Fox Valley Marathon 2011 Weather History

Cloudy skies throughout the day with rain.

2011
cloudy
54°/ 59°Light
Run Score: 7

Fox Valley Marathon 2010 Weather History

Partly cloudy throughout the day with early morning rain.

2010
partly-cloudy-day
53°/ 67°-
Run Score: 9
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR