From the Organizer
Brrrrr... baby, it's cold outside. Good.
Around here, we don't spend winter hiding under blankets and counting down the days until spring. We get outside and celebrate it! The Waukesha JanBoree is all about embracing everything that makes a Wisconsin winter great, and the Frosty 5K is your chance to be part of the action.
A longtime JanBoree favorite and a proud stop on the Wisconsin Chilly Willy Winter Run Series, the Frosty 5K invites runners, walkers, families, and winter enthusiasts alike to bundle up, lace up, and tackle the season head-on.
The fast, flat, two-lap course winds through beautiful Frame Park and along the scenic Fox River, offering a perfect setting for PR hunters, casual runners, and anyone looking to shake off a little cabin fever. Crisp air, frozen breath, and the crunch of winter beneath your feet... this is what January running is all about.
And when you cross the finish line, the fun is far from over. JanBoree fills the entire weekend with more than 35 events and activities throughout Waukesha, creating one giant winter celebration for all ages.
Sure, it'll be cold. That's kind of the point.
Every January, hundreds of runners trade excuses for extra layers and prove that Wisconsin winters aren't something to endure. They're something to enjoy.
So zip up that jacket, pull on those gloves, and join us for a No Mopin', Nose Nippin', Cold Snappin' Good Time at the Frosty 5K!
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
27°
Typical Low
11°
Chance of Rain
30%
Based on US Climate Normals data from Waukesha Wwtp.
Host City
About Waukesha, WI
Population
70,779
as of 2023
City Elevation
797 ft
Nearest Airport
MKE
General Mitchell International Airport · 18 mi
Time Zone
Central Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Approximate location — pin shows the host city, not the exact venue.
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Frosty 5K, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Waukesha, WI
Independence Day Run
1K · 5K · 10K · Half Marathon · From $42.50 · FOX RIVER PARK
4 miles away
Run With The Cops
5K · From $40 · 494 W Main St
1 mile away
Christmas Clearing Council Jingle Bell Jog and Walk
2 Mile / 3K · 5K · Other · From $5 · The Ingleside Hotel and Lake Country Trail
6 miles away
Procrastination Run
1K · 5K · 10K · Half Marathon · From $35 · 1927 E Sunset Drive
4 miles away
From Endurance Grid
About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Rucking
Covering a distance on foot under a weighted rucksack — from timed solo challenges to longer team events.
Frequently Asked Questions (FAQs)
- What is the Frosty 5K?
- Frosty 5K is a running and rucking race held in Waukesha, Wisconsin on January 23, 2027. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Frosty 5K?
- Saturday, January 23, 2027 in Waukesha, Wisconsin at Frame Park. Check the event page for exact start times and wave schedules.
- How do I register for the Frosty 5K?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Frosty 5K
Jan 23, 2027