Yes
you do need a jacket based on the weather in Hamilton, ON, Canada 1 second ago
Why? Because the cold's there, but it's just a reminder, not an invasion!
42°F6°C & Cloudy
Wind is 2 mph4 km/h from the East, gusting to 5 mph8 km/h
| May 1 | ||||
| 2am | 42°F6°C | 3 mph5 km/h East | Mostly Cloudy | |
| 3am | 42°F6°C | 3 mph5 km/h East | Cloudy | |
| 4am | 42°F5°C | 4 mph6 km/h East | Partly Cloudy | |
| 5am | 41°F5°C | 4 mph7 km/h Northeast | Partly Cloudy | |
| 6am | 41°F5°C | 5 mph7 km/h Northeast | Cloudy | |
| 7am | 42°F5°C | 6 mph9 km/h Northeast | Cloudy | |
| 8am | 43°F6°C | 7 mph11 km/h Northeast | Cloudy | |
| 9am | 44°F7°C | 8 mph13 km/h Northeast | Cloudy | |
| 10am | 45°F7°C | 9 mph15 km/h Northeast | Cloudy | |
| 11am | 46°F8°C | 10 mph16 km/h Northeast | Cloudy | |
| 12pm | 48°F9°C | 10 mph17 km/h Northeast | Cloudy | |
| 1pm | 50°F10°C | 11 mph18 km/h Northeast | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 1 | 41°F5°C | 53°F12°C | 9 mph14 km/h from Northeast | Rain | Rain |
| May 2 | 53°F12°C | 66°F19°C | 13 mph21 km/h from West | Mostly Cloudy | Drizzle |
| May 3 | 48°F9°C | 55°F13°C | 7 mph11 km/h from Northeast | Drizzle | Cloudy |
| May 4 | 46°F8°C | 54°F12°C | 11 mph17 km/h from Northeast | Cloudy | Rain |
| May 5 | 45°F7°C | 55°F13°C | 14 mph22 km/h from Northeast | Drizzle | Drizzle |
| May 6 | 51°F10°C | 61°F16°C | 8 mph13 km/h from Northeast | Drizzle | Drizzle |
| May 7 | 52°F11°C | 63°F17°C | 6 mph9 km/h from Northeast | Thunderstorms | Mostly Cloudy |
Yes
Low of 54°F12°C, High of 66°F19°CWind: 13 mph21 km/h
Precipitation: 27% rain