No
you don't need a jacket based on the weather in Sarnia, ON, Canada 1 second ago
61°F16°C & Cloudy
Wind is 4 mph6 km/h from the N, gusting to 10 mph16 km/h
| April 18 | ||||
| 5pm | 61°F16°C | 4 mph6 km/h N | Cloudy | |
| 6pm | 60°F16°C | 4 mph6 km/h E | Cloudy | |
| 7pm | 59°F15°C | 6 mph9 km/h SE | Cloudy | |
| 8pm | 57°F14°C | 6 mph10 km/h SE | Cloudy | |
| 9pm | 56°F13°C | 6 mph9 km/h S | Cloudy | |
| 10pm | 54°F12°C | 6 mph9 km/h SE | Mostly Cloudy | |
| 11pm | 53°F12°C | 5 mph8 km/h SE | Cloudy | |
| April 19 | ||||
| 12am | 52°F11°C | 6 mph9 km/h SE | Mostly Cloudy | |
| 1am | 52°F11°C | 6 mph10 km/h SE | Cloudy | |
| 2am | 51°F10°C | 5 mph9 km/h SE | Cloudy | |
| 3am | 50°F10°C | 5 mph8 km/h E | Rain | |
| 4am | 49°F10°C | 6 mph10 km/h E | Rain | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 18 | 50°F10°C | 62°F16°C | 7 mph11 km/h from NW | Mostly Cloudy | Rain |
| April 19 | 43°F6°C | 56°F13°C | 15 mph24 km/h from W | Rain | Partly Cloudy |
| April 20 | 37°F3°C | 47°F8°C | 15 mph23 km/h from W | Partly Cloudy | Partly Cloudy |
| April 21 | 34°F1°C | 54°F12°C | 11 mph18 km/h from W | Partly Cloudy | Mostly Clear |
| April 22 | 37°F3°C | 58°F15°C | 7 mph11 km/h from SW | Partly Cloudy | Mostly Cloudy |
| April 23 | 45°F7°C | 55°F13°C | 13 mph22 km/h from SW | Drizzle | Mostly Cloudy |
| April 24 | 33°F1°C | 45°F7°C | 18 mph29 km/h from N | Windy | Clear |
Yes
Low of 43°F6°C, High of 56°F14°CWind: 15 mph24 km/h
Precipitation: 67% rain