Yes
you do need a jacket based on the weather in Harpenden AL5, UK 1 second ago
Why? Because there's a refreshing nip in the air.
48°F9°C & Cloudy
Wind is 10 mph16 km/h from the NE, gusting to 19 mph30 km/h
| April 19 | ||||
| 2pm | 48°F9°C | 10 mph17 km/h NE | Cloudy | |
| 3pm | 46°F8°C | 10 mph16 km/h NE | Cloudy | |
| 4pm | 45°F7°C | 9 mph14 km/h NE | Mostly Cloudy | |
| 5pm | 44°F7°C | 8 mph13 km/h N | Mostly Cloudy | |
| 6pm | 43°F6°C | 7 mph12 km/h N | Partly Cloudy | |
| 7pm | 41°F5°C | 8 mph12 km/h N | Mostly Clear | |
| 8pm | 39°F4°C | 8 mph13 km/h N | Mostly Clear | |
| 9pm | 38°F3°C | 9 mph14 km/h N | Mostly Clear | |
| 10pm | 37°F3°C | 9 mph14 km/h N | Mostly Clear | |
| 11pm | 36°F2°C | 9 mph14 km/h N | Mostly Clear | |
| April 20 | ||||
| 12am | 36°F2°C | 9 mph14 km/h N | Mostly Clear | |
| 1am | 35°F2°C | 9 mph14 km/h NW | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 18 | 41°F5°C | 55°F13°C | 11 mph17 km/h from NW | Drizzle | Partly Cloudy |
| April 19 | 35°F2°C | 51°F10°C | 11 mph18 km/h from N | Mostly Cloudy | Partly Cloudy |
| April 20 | 35°F2°C | 52°F11°C | 12 mph19 km/h from N | Mostly Cloudy | Partly Cloudy |
| April 21 | 35°F2°C | 49°F9°C | 6 mph10 km/h from NW | Cloudy | Drizzle |
| April 22 | 40°F4°C | 52°F11°C | 12 mph20 km/h from N | Mostly Cloudy | Mostly Cloudy |
| April 23 | 38°F3°C | 50°F10°C | 9 mph15 km/h from NW | Mostly Cloudy | Partly Cloudy |
| April 24 | 37°F3°C | 51°F11°C | 6 mph9 km/h from NW | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 36°F2°C, High of 51°F11°CWind: 11 mph18 km/h
Precipitation: None