Yes
you do need a jacket based on the weather in Hemel Hempstead, UK 1 second ago
Why? Because the cold's there, but it's just a reminder, not an invasion!
49°F9°C & Partly Cloudy
Wind is 5 mph8 km/h from the West, gusting to 11 mph17 km/h
| June 9 | ||||
| 1am | 50°F10°C | 5 mph8 km/h West | Partly Cloudy | |
| 2am | 52°F11°C | 7 mph11 km/h West | Partly Cloudy | |
| 3am | 55°F13°C | 7 mph12 km/h West | Partly Cloudy | |
| 4am | 58°F14°C | 7 mph11 km/h West | Partly Cloudy | |
| 5am | 60°F16°C | 7 mph12 km/h West | Mostly Cloudy | |
| 6am | 62°F17°C | 8 mph13 km/h Southwest | Mostly Cloudy | |
| 7am | 63°F17°C | 9 mph15 km/h Southwest | Mostly Cloudy | |
| 8am | 64°F18°C | 10 mph16 km/h Southwest | Mostly Cloudy | |
| 9am | 66°F19°C | 10 mph16 km/h Southwest | Cloudy | |
| 10am | 66°F19°C | 11 mph17 km/h Southwest | Cloudy | |
| 11am | 65°F19°C | 10 mph16 km/h Southwest | Cloudy | |
| 12pm | 65°F18°C | 10 mph16 km/h Southwest | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 8 | 49°F9°C | 66°F19°C | 9 mph14 km/h from Southwest | Mostly Cloudy | Cloudy |
| June 9 | 54°F12°C | 69°F21°C | 11 mph17 km/h from West | Cloudy | Partly Cloudy |
| June 10 | 53°F11°C | 74°F23°C | 9 mph14 km/h from Southeast | Partly Cloudy | Mostly Cloudy |
| June 11 | 57°F14°C | 74°F23°C | 11 mph18 km/h from South | Rain | Mostly Clear |
| June 12 | 55°F13°C | 77°F25°C | 8 mph13 km/h from Southeast | Partly Cloudy | Rain |
| June 13 | 57°F14°C | 72°F22°C | 10 mph15 km/h from Southwest | Drizzle | Mostly Clear |
| June 14 | 52°F11°C | 69°F21°C | 11 mph17 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 55°F13°C, High of 69°F21°CWind: 11 mph17 km/h
Precipitation: 8% rain