Sunday, October 18, 2026Grand Rapids, MI
University of Michigan Health-West Grand Rapids Marathon
4 events
- Half MarathonHalfRoadStarts 8:00 AM
- MarathonMarathonRoadStarts 8:00 AM
- Run Thru The Rapids 10K10KRoadStarts 8:20 AM
- Run Thru The Rapids 5K5KRoadStarts 8:30 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherGood weather · 83/100
- High / low
- 59° / 42°F
- 15° / 5°C
- Humidity
- 78%
- Dew point 43°F
- Chance of rain
- 46%
- Wind
- 11 mph
- Average
- Rain on about 46% of days around this date.
- Often windy: about 11 mph on average.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.