What is the weather usually like on race day for the Summer Sizzler- Grand Rapids?

Based on the last 10 years of weather data for Grand Rapids, MI, August race mornings typically start near 63°F and warm to around 81°F. On this calendar date it has rained in 4 of the last 10 years.

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Summer Sizzler- Grand Rapids

Grand Rapids, MI

Sun, Aug 15, 2027

In 287 days · Sun, Aug 15, 2027

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When

Sunday, August 15th, 2027

Where

TBD, Grand Rapids MI

Distances

1 Mile · 5K · 10K · Ultra

Typical weather

63–81°F · some rain risk

See last 10 years

On this date: rain 4 of the last 10 years

2025

72–91°F

dry

2024

66–79°F

rain

2023

53–78°F

dry

2022

58–80°F

dry

2021

56–79°F

dry

2020

65–82°F

rain

2019

57–82°F

dry

2018

67–83°F

rain

2017

62–87°F

dry

2016

69–82°F

rain

Best months to race in Michigan →

Race-day forecast · Sunday, Aug 15

Rain likely · 72–84°F

Sunday, Aug 15starts near 72°F · 27% chance of rain · wind up to 13 mph

About this race

Join us for the annual Summer Sizzler 5k/10k/15k! A fun summer event that is perfect for the whole family. The fun includes -

Great Swag - designer shirt & custom medal
Chip-timing with live results and awards
Free photos
Delicious Treats waiting at the finish line
FREE Kona Ice
Plenty of fun!

Grab your friends and family, you are not going to want to miss this one! Can't make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag! *Youth-based pricing for the 5k/10k, 12 & Under are only $17!

5k/10k/15K registration includes a custom bib, designer shirt, and a custom finisher medal!
1 Mile registration is untimed and includes a custom bib, designer shirt, and an awesome finisher medal!
The kid's dash is a fun, untimed dash for our kiddos ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a specifically crafted medal for our kids' dash event! (If your child wants to run the kid's dash, and doesn't want the SWAG, they are welcome to run with us on race day for free!)

*Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt! 🏁🏅Create a team, or join an existing team during registration. Once 4 people have registered on that team, all team members will be refunded $5, once ten people register another $5 will be refunded for a total of $10!