Harbor Island Weather Forecast
- 45
- 64
Increasing Clouds
- 45
- 61
Becoming Sunny
- 44
- 65
Sunny
- 47
- 70
Mostly Sunny
- 45
- 59
Mostly Cloudy
- 44
- 58
Mostly Cloudy
- 43
- 59
Partly Sunny
Today 15 Apr City of Seattle
Partly cloudy. Lows in the lower to mid 40s. North wind around 10 Mph in the evening becoming light.