No
you don't need a jacket based on the weather in St. Catharines, ON, Canada 1 second ago
59°F15°C & Cloudy
Wind is 6 mph9 km/h from the Southwest, gusting to 13 mph21 km/h
| September 6 | ||||
| 9am | 60°F16°C | 7 mph11 km/h Southwest | Cloudy | |
| 10am | 62°F17°C | 8 mph13 km/h West | Cloudy | |
| 11am | 63°F17°C | 8 mph12 km/h West | Cloudy | |
| 12pm | 64°F18°C | 7 mph11 km/h West | Cloudy | |
| 1pm | 64°F18°C | 7 mph11 km/h Southwest | Cloudy | |
| 2pm | 65°F18°C | 9 mph14 km/h Southwest | Mostly Cloudy | |
| 3pm | 69°F21°C | 11 mph18 km/h Southwest | Mostly Clear | |
| 4pm | 68°F20°C | 13 mph20 km/h Southwest | Mostly Cloudy | |
| 5pm | 68°F20°C | 13 mph21 km/h Southwest | Partly Cloudy | |
| 6pm | 67°F20°C | 12 mph20 km/h Southwest | Partly Cloudy | |
| 7pm | 66°F19°C | 11 mph17 km/h West | Partly Cloudy | |
| 8pm | 63°F17°C | 9 mph14 km/h West | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 6 | 53°F12°C | 69°F21°C | 9 mph14 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| September 7 | 53°F12°C | 66°F19°C | 10 mph16 km/h from West | Mostly Clear | Mostly Clear |
| September 8 | 52°F11°C | 67°F20°C | 4 mph6 km/h from West | Mostly Clear | Clear |
| September 9 | 53°F12°C | 74°F23°C | 7 mph11 km/h from South | Mostly Clear | Mostly Clear |
| September 10 | 57°F14°C | 75°F24°C | 7 mph11 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 11 | 60°F16°C | 72°F22°C | 9 mph14 km/h from Northeast | Mostly Clear | Mostly Clear |
| September 12 | 54°F12°C | 67°F19°C | 10 mph17 km/h from Northeast | Mostly Clear | Mostly Clear |
Yes
Low of 53°F12°C, High of 66°F19°CWind: 10 mph16 km/h
Precipitation: 12% rain