Saturday, October 24, 2026Issaquah, WA
Issaquah Schools Foundation Monster Mash 5K
1 event
- In-Person 5K5KRoadStarts 10:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherGood weather · 79/100
- High / low
- 53° / 40°F
- 12° / 5°C
- Humidity
- 86%
- Dew point 42°F
- Chance of rain
- 58%
- Wind
- 4 mph
- Average
- Rain on about 58% of days around this date.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- 11% slowerFinish times are typically 11% slower than at other 5Ks.1 year, 361 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2025 | In-Person 5K · 5K | 361 | 39:12 | 34:54 | 42:08 |
Median finish times from results published on RunSignup. Keyrace keeps only these summaries, never individual results. A fast or slow field affects times as much as the course does.