Yes
you do need a jacket based on the weather in St. Catharines, ON, Canada 1 second ago
Why? Because it's bitterly cold.
41°F5°C & Clear
Wind is 3 mph5 km/h from the N, gusting to 7 mph12 km/h
| April 24 | ||||
| 10pm | 40°F5°C | 4 mph6 km/h N | Clear | |
| 11pm | 39°F4°C | 5 mph8 km/h N | Clear | |
| April 25 | ||||
| 12am | 38°F3°C | 5 mph8 km/h N | Clear | |
| 1am | 37°F3°C | 5 mph8 km/h NE | Clear | |
| 2am | 36°F2°C | 7 mph11 km/h E | Clear | |
| 3am | 34°F1°C | 7 mph12 km/h E | Clear | |
| 4am | 33°F1°C | 7 mph11 km/h E | Clear | |
| 5am | 32°F0°C | 6 mph10 km/h E | Clear | |
| 6am | 32°F-0°C | 6 mph9 km/h E | Clear | |
| 7am | 32°F0°C | 5 mph8 km/h E | Clear | |
| 8am | 35°F2°C | 6 mph9 km/h E | Clear | |
| 9am | 38°F3°C | 6 mph10 km/h E | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 24 | 38°F3°C | 49°F9°C | 8 mph14 km/h from N | Mostly Cloudy | Clear |
| April 25 | 32°F-0°C | 48°F9°C | 8 mph12 km/h from NE | Clear | Clear |
| April 26 | 33°F0°C | 58°F15°C | 9 mph14 km/h from E | Clear | Mostly Cloudy |
| April 27 | 46°F8°C | 60°F16°C | 14 mph23 km/h from S | Rain | Drizzle |
| April 28 | 54°F12°C | 69°F21°C | 13 mph21 km/h from SW | Drizzle | Rain |
| April 29 | 54°F12°C | 72°F22°C | 11 mph18 km/h from SW | Mostly Clear | Partly Cloudy |
| April 30 | 54°F12°C | 67°F19°C | 12 mph19 km/h from SW | Drizzle | Partly Cloudy |
Yes
Low of 32°F-0°C, High of 47°F9°CWind: 8 mph12 km/h
Precipitation: None