Yes
you do need a jacket based on the weather in Radlett, UK 1 second ago
Why? Because it's not very warm out!
56°F13°C & Cloudy
Wind is 9 mph14 km/h from the North, gusting to 18 mph29 km/h
| August 21 | ||||
| 12am | 56°F13°C | 9 mph15 km/h North | Cloudy | |
| 1am | 56°F13°C | 9 mph15 km/h North | Cloudy | |
| 2am | 56°F13°C | 9 mph15 km/h North | Mostly Cloudy | |
| 3am | 57°F14°C | 10 mph16 km/h North | Mostly Cloudy | |
| 4am | 59°F15°C | 11 mph17 km/h North | Mostly Cloudy | |
| 5am | 60°F16°C | 11 mph18 km/h North | Mostly Cloudy | |
| 6am | 62°F17°C | 11 mph17 km/h North | Mostly Cloudy | |
| 7am | 64°F18°C | 10 mph17 km/h North | Mostly Cloudy | |
| 8am | 65°F19°C | 10 mph16 km/h North | Mostly Cloudy | |
| 9am | 67°F20°C | 9 mph15 km/h North | Partly Cloudy | |
| 10am | 68°F20°C | 9 mph15 km/h North | Partly Cloudy | |
| 11am | 68°F20°C | 10 mph16 km/h North | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 20 | 56°F13°C | 68°F20°C | 10 mph16 km/h from North | Mostly Cloudy | Mostly Clear |
| August 21 | 49°F10°C | 71°F22°C | 4 mph7 km/h from West | Partly Cloudy | Mostly Cloudy |
| August 22 | 56°F13°C | 70°F21°C | 6 mph10 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| August 23 | 54°F12°C | 71°F22°C | 6 mph10 km/h from East | Partly Cloudy | Partly Cloudy |
| August 24 | 54°F12°C | 73°F23°C | 7 mph11 km/h from East | Partly Cloudy | Mostly Clear |
| August 25 | 55°F13°C | 73°F23°C | 9 mph15 km/h from Southeast | Mostly Cloudy | Partly Cloudy |
| August 26 | 56°F14°C | 72°F22°C | 10 mph16 km/h from South | Partly Cloudy | Partly Cloudy |
Yes
Low of 49°F10°C, High of 71°F22°CWind: 4 mph7 km/h
Precipitation: None