No
you don't need a jacket based on the weather in St Thomas, ON, Canada 1 second ago
74°F23°C & Mostly Clear
Wind is 7 mph12 km/h from the South, gusting to 11 mph18 km/h
| September 1 | ||||
| 6pm | 73°F23°C | 7 mph11 km/h South | Clear | |
| 7pm | 71°F22°C | 5 mph8 km/h South | Clear | |
| 8pm | 66°F19°C | 3 mph4 km/h South | Clear | |
| 9pm | 62°F17°C | 2 mph3 km/h Southeast | Clear | |
| 10pm | 59°F15°C | 4 mph6 km/h East | Clear | |
| 11pm | 57°F14°C | 5 mph8 km/h Northeast | Clear | |
| September 2 | ||||
| 12am | 55°F13°C | 5 mph9 km/h Northeast | Clear | |
| 1am | 55°F13°C | 6 mph9 km/h Northeast | Clear | |
| 2am | 54°F12°C | 6 mph9 km/h East | Clear | |
| 3am | 54°F12°C | 5 mph9 km/h East | Clear | |
| 4am | 53°F12°C | 5 mph9 km/h East | Clear | |
| 5am | 53°F11°C | 5 mph8 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 1 | 48°F9°C | 76°F24°C | 7 mph11 km/h from Southeast | Clear | Clear |
| September 2 | 52°F11°C | 76°F24°C | 5 mph9 km/h from South | Mostly Clear | Clear |
| September 3 | 57°F14°C | 75°F24°C | 11 mph17 km/h from South | Mostly Clear | Rain |
| September 4 | 55°F13°C | 68°F20°C | 11 mph18 km/h from West | Rain | Partly Cloudy |
| September 5 | 50°F10°C | 66°F19°C | 11 mph18 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| September 6 | 51°F10°C | 66°F19°C | 11 mph18 km/h from West | Partly Cloudy | Partly Cloudy |
| September 7 | 48°F9°C | 65°F18°C | 9 mph14 km/h from Northwest | Partly Cloudy | Clear |
Yes
Low of 52°F11°C, High of 75°F24°CWind: 5 mph9 km/h
Precipitation: None