Typically the weather in Knoxville right-through May is 18. You can expect highs around 26 with lows around 14 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 18 |
| High Temperature | 26 |
| Low Temperature | 14 |
Useful Links: Knoxville Weather: Average Weather & Yearly Climate