Yes
you do need a jacket based on the weather in Hertfordshire, UK 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
53°F12°C & Cloudy
Wind is 6 mph9 km/h from the Northeast, gusting to 11 mph17 km/h
| October 15 | ||||
| 10pm | 53°F12°C | 6 mph9 km/h Northeast | Cloudy | |
| 11pm | 53°F12°C | 5 mph8 km/h Northeast | Cloudy | |
| October 16 | ||||
| 12am | 52°F11°C | 5 mph8 km/h Northeast | Cloudy | |
| 1am | 52°F11°C | 5 mph8 km/h North | Cloudy | |
| 2am | 52°F11°C | 5 mph8 km/h North | Cloudy | |
| 3am | 51°F11°C | 5 mph8 km/h North | Cloudy | |
| 4am | 51°F10°C | 5 mph8 km/h North | Cloudy | |
| 5am | 51°F10°C | 5 mph9 km/h Northeast | Mostly Cloudy | |
| 6am | 50°F10°C | 5 mph8 km/h North | Mostly Cloudy | |
| 7am | 51°F10°C | 5 mph8 km/h North | Mostly Cloudy | |
| 8am | 51°F11°C | 6 mph9 km/h Northeast | Mostly Cloudy | |
| 9am | 53°F12°C | 6 mph10 km/h Northeast | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 14 | 50°F10°C | 55°F13°C | 5 mph8 km/h from North | Cloudy | Cloudy |
| October 15 | 50°F10°C | 59°F15°C | 5 mph9 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| October 16 | 49°F9°C | 57°F14°C | 5 mph7 km/h from Northeast | Partly Cloudy | Mostly Cloudy |
| October 17 | 47°F8°C | 58°F14°C | 8 mph13 km/h from Southeast | Cloudy | Cloudy |
| October 18 | 50°F10°C | 58°F14°C | 12 mph20 km/h from Southeast | Drizzle | Rain |
| October 19 | 51°F11°C | 57°F14°C | 12 mph19 km/h from Southwest | Drizzle | Drizzle |
| October 20 | 49°F10°C | 57°F14°C | 10 mph16 km/h from West | Drizzle | Partly Cloudy |
Yes
Low of 50°F10°C, High of 59°F15°CWind: 5 mph9 km/h
Precipitation: None