Yes
you do need a jacket based on the weather in Sarnia, ON, Canada 1 second ago
Why? Because it's cool enough your breath is visible, but your nose isn’t red yet!
43°F6°C & Partly Cloudy
Wind is 3 mph5 km/h from the Southeast, gusting to 4 mph7 km/h
| November 2 | ||||
| 2am | 42°F6°C | 3 mph5 km/h Southeast | Partly Cloudy | |
| 3am | 41°F5°C | 2 mph3 km/h Southeast | Mostly Clear | |
| 4am | 40°F4°C | 2 mph3 km/h East | Mostly Clear | |
| 5am | 39°F4°C | 4 mph6 km/h East | Mostly Clear | |
| 6am | 38°F3°C | 4 mph6 km/h East | Mostly Clear | |
| 7am | 37°F3°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 8am | 37°F3°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 9am | 37°F3°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 10am | 37°F3°C | 3 mph5 km/h Southeast | Mostly Clear | |
| 11am | 36°F2°C | 3 mph5 km/h South | Mostly Clear | |
| 12pm | 36°F2°C | 3 mph5 km/h South | Mostly Clear | |
| 1pm | 37°F3°C | 3 mph5 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 1 | 36°F2°C | 52°F11°C | 3 mph4 km/h from North | Partly Cloudy | Mostly Clear |
| November 2 | 36°F2°C | 54°F12°C | 8 mph13 km/h from Southwest | Clear | Partly Cloudy |
| November 3 | 42°F6°C | 55°F13°C | 17 mph27 km/h from West | Windy | Clear |
| November 4 | 38°F3°C | 57°F14°C | 11 mph17 km/h from West | Partly Cloudy | Cloudy |
| November 5 | 42°F5°C | 53°F12°C | 10 mph17 km/h from West | Drizzle | Mostly Clear |
| November 6 | 38°F3°C | 51°F11°C | 8 mph12 km/h from West | Mostly Cloudy | Cloudy |
| November 7 | 44°F7°C | 54°F12°C | 13 mph21 km/h from South | Drizzle | Mostly Cloudy |
Yes
Low of 36°F2°C, High of 54°F12°CWind: 8 mph13 km/h
Precipitation: None