Belleville Main Street Marathon

Belleville, IL, USA · October 23, 2027

51°·64° high·Breezy·Dry

Weather

Race Day Weather

51°at start

66° high

Breezy

Dry

Cool start, mild finish, crosswinds

Runners will face temperatures starting at 51°F and rising to 61°F by the finish. Winds will be a factor, with a crosswind from the SW in the first and last segments, shifting to a tailwind during Miles 15 and 20. Given the humidity at 64%, it's advisable to adjust pacing accordingly and stay hydrated, particularly during the tougher segments with headwinds around Miles 21-22 and 26.

Race day forecast available in 331 days

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

—

Weather Adj.

—

Common Goals:

Get forecast alerts for Belleville Main Street Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The Belleville Main Street Marathon and Half Marathon run through downtown Belleville, Illinois, on what organizers call America's longest Main Street. The full marathon is USATF-certified and qualifies for Boston. The event marks its 10th anniversary in 2026, and the half marathon has been designated an RRCA Illinois state championship race. Finishers gather afterward for pizza from Bennie's Pizza Pub and a beer brewed for the race by Shoehorn Brewing.

Website

FAQ

When is the 2027 Belleville Main Street Marathon?

The 2027 Belleville Main Street Marathon will be held on Saturday October 23, 2027.

Is the Belleville Main Street Marathon a Boston Marathon Qualifier?

Yes, the Belleville Main Street Marathon is an official Boston Marathon qualifier.

What is the time limit for the Belleville Main Street Marathon?

The time limit for the Belleville Main Street Marathon is 6.5 hours.

What will the weather be like for the 2027 Belleville Main Street Marathon?

The forecast calls for a high of 66°F and a low of 47°F with a 9% chance of rain.

Historical Weather

Based on 11 years of data

Avg Temp

78°F

L:58° H:78°

RunScore

Conditions

Rain Freq

18%

2 of 11 yrs

Wind8mph

Dew58°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Belleville Main Street Marathon Partly cloudy throughout the day with afternoon rain. 2026	62°/71°	Light	55°
2025 Belleville Main Street Marathon Clear conditions throughout the day. 2025	53°/83°	-	56°
2024 Belleville Main Street Marathon Partly cloudy throughout the day with rain clearing later. 2024	66°/75°	Light	62°
2023 Belleville Main Street Marathon Clear conditions throughout the day. 2023	63°/88°	-	65°
2022 Belleville Main Street Marathon Clear conditions throughout the day. 2022	53°/80°	-	56°
2021 Belleville Main Street Marathon Clear conditions throughout the day with early morning rain. 2021	51°/72°	-	52°
2020 Belleville Main Street Marathon Clearing in the afternoon. 2020	64°/79°	-	62°
2019 Belleville Main Street Marathon Clearing in the afternoon. 2019	66°/77°	-	67°
2018 Belleville Main Street Marathon Partly cloudy throughout the day. 2018	51°/67°	-	46°
2017 Belleville Main Street Marathon Clear conditions throughout the day. 2017	48°/73°	-	45°
2016 Belleville Main Street Marathon Clear conditions throughout the day. 2016	65°/89°	-	68°

More IL Races

Starved Rock Country Marathon

2027-05-08 · 42.200km · Ottawa, IL, USA

Quad Cities Marathon

2027-09-26 · 42.200km · Moline, IL, USA

Chicago Marathon

2027-10-10 · 42.200km · Chicago, IL, USA

Tunnel Hill Marathon

2026-11-14 · 42.200km · Vienna, IL, USA

Rend Lake Marathon

2027-03-27 · Marathon · Whittington, IL, USA

Spring Chance BQ.2 Marathon (Geneva, IL)

2027-04-11 · Marathon · Geneva, IL, USA