Normally weather temperatures in Ketchikan through October is 6 with usual highs being around 10 and low of 6. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | 6 |
| High Temperature | 10 |
| Low Temperature | 6 |
| Sunshine Per Day | 8 |
Useful Links: Ketchikan Weather: Average Weather & Yearly Climate