No
you don't need a jacket based on the weather in St. Thomas, ON, Canada 5 minutes ago
79°F26°C & Clear
Wind is 6 mph10 km/h from the East, gusting to 9 mph14 km/h
| September 16 | ||||
| 2pm | 80°F27°C | 6 mph10 km/h East | Clear | |
| 3pm | 81°F27°C | 6 mph10 km/h Southeast | Mostly Clear | |
| 4pm | 81°F27°C | 6 mph10 km/h Southeast | Mostly Clear | |
| 5pm | 79°F26°C | 6 mph10 km/h Southeast | Mostly Clear | |
| 6pm | 77°F25°C | 7 mph11 km/h Southeast | Clear | |
| 7pm | 74°F23°C | 4 mph7 km/h South | Clear | |
| 8pm | 69°F21°C | 3 mph4 km/h Southeast | Mostly Clear | |
| 9pm | 67°F19°C | 5 mph7 km/h East | Mostly Clear | |
| 10pm | 65°F18°C | 6 mph9 km/h Northeast | Clear | |
| 11pm | 63°F17°C | 7 mph11 km/h Northeast | Clear | |
| September 17 | ||||
| 12am | 61°F16°C | 7 mph11 km/h Northeast | Clear | |
| 1am | 60°F15°C | 6 mph10 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 54°F12°C | 81°F27°C | 7 mph11 km/h from East | Clear | Clear |
| September 17 | 54°F12°C | 80°F27°C | 4 mph6 km/h from East | Clear | Clear |
| September 18 | 55°F13°C | 80°F27°C | 7 mph11 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 19 | 56°F13°C | 74°F24°C | 7 mph11 km/h from North | Mostly Clear | Clear |
| September 20 | 50°F10°C | 76°F24°C | 13 mph20 km/h from East | Partly Cloudy | Partly Cloudy |
| September 21 | 55°F13°C | 78°F26°C | 10 mph17 km/h from South | Partly Cloudy | Partly Cloudy |
| September 22 | 65°F18°C | 78°F25°C | 11 mph18 km/h from Southwest | Partly Cloudy | Partly Cloudy |
Yes
Low of 55°F13°C, High of 81°F27°CWind: 4 mph6 km/h
Precipitation: None