Normally the average daily weather in Seattle through June is 14. High temperatures are around 21 and average daily low being 11. The table below has some further insights:
| Month | Degrees Celsius |
|---|---|
| Temperature | 14 |
| High Temperature | 21 |
| Low Temperature | 11 |
| Sunshine Per Day | 11 |
Useful Links: Seattle Weather: Average Weather & Yearly Climate