No
you don't need a jacket based on the weather in St. Catharines, ON, Canada 1 second ago
69°F21°C & Cloudy
Wind is 7 mph12 km/h from the Southwest, gusting to 15 mph24 km/h
| September 22 | ||||
| 8pm | 69°F20°C | 8 mph13 km/h South | Cloudy | |
| 9pm | 68°F20°C | 9 mph14 km/h Southwest | Cloudy | |
| 10pm | 67°F19°C | 8 mph13 km/h Southwest | Cloudy | |
| 11pm | 66°F19°C | 8 mph13 km/h Southwest | Cloudy | |
| September 23 | ||||
| 12am | 66°F19°C | 8 mph12 km/h Southwest | Cloudy | |
| 1am | 66°F19°C | 7 mph12 km/h Southwest | Drizzle | |
| 2am | 65°F19°C | 6 mph10 km/h Southwest | Drizzle | |
| 3am | 65°F18°C | 6 mph10 km/h South | Drizzle | |
| 4am | 64°F18°C | 6 mph9 km/h South | Drizzle | |
| 5am | 64°F18°C | 4 mph7 km/h South | Drizzle | |
| 6am | 64°F18°C | 4 mph7 km/h South | Drizzle | |
| 7am | 64°F18°C | 4 mph7 km/h South | Drizzle | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 22 | 65°F18°C | 77°F25°C | 8 mph12 km/h from Southwest | Mostly Cloudy | Drizzle |
| September 23 | 64°F18°C | 74°F23°C | 3 mph6 km/h from North | Rain | Drizzle |
| September 24 | 63°F17°C | 72°F22°C | 5 mph9 km/h from Northeast | Drizzle | Rain |
| September 25 | 63°F17°C | 71°F22°C | 7 mph11 km/h from North | Rain | Drizzle |
| September 26 | 61°F16°C | 72°F22°C | 5 mph9 km/h from West | Partly Cloudy | Mostly Clear |
| September 27 | 60°F16°C | 73°F23°C | 10 mph16 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 28 | 59°F15°C | 70°F21°C | 8 mph13 km/h from West | Mostly Clear | Mostly Clear |
No
Low of 64°F18°C, High of 73°F23°CWind: 3 mph6 km/h
Precipitation: 73% rain