Yes
you do need a jacket based on the weather in Hemel Hempstead, UK 1 second ago
Why? Because it's on the windy side!
66°F19°C & Mostly Clear
Wind is 11 mph18 km/h from the East, gusting to 22 mph36 km/h
| May 10 | ||||
| 1pm | 66°F19°C | 12 mph19 km/h East | Mostly Clear | |
| 2pm | 64°F18°C | 11 mph18 km/h East | Clear | |
| 3pm | 61°F16°C | 9 mph15 km/h East | Clear | |
| 4pm | 58°F15°C | 7 mph11 km/h East | Clear | |
| 5pm | 56°F13°C | 7 mph11 km/h East | Clear | |
| 6pm | 53°F12°C | 7 mph11 km/h East | Clear | |
| 7pm | 51°F11°C | 6 mph10 km/h East | Mostly Clear | |
| 8pm | 50°F10°C | 6 mph9 km/h Northeast | Partly Cloudy | |
| 9pm | 49°F9°C | 6 mph10 km/h Northeast | Mostly Clear | |
| 10pm | 48°F9°C | 5 mph9 km/h Northeast | Mostly Clear | |
| 11pm | 48°F9°C | 6 mph9 km/h Northeast | Partly Cloudy | |
| May 11 | ||||
| 12am | 48°F9°C | 6 mph9 km/h Northeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 9 | 41°F5°C | 70°F21°C | 8 mph12 km/h from East | Mostly Clear | Mostly Clear |
| May 10 | 47°F9°C | 71°F22°C | 11 mph18 km/h from East | Mostly Clear | Partly Cloudy |
| May 11 | 52°F11°C | 71°F22°C | 10 mph16 km/h from East | Partly Cloudy | Clear |
| May 12 | 51°F10°C | 71°F22°C | 11 mph17 km/h from East | Clear | Clear |
| May 13 | 47°F9°C | 70°F21°C | 10 mph17 km/h from Northeast | Partly Cloudy | Partly Cloudy |
| May 14 | 45°F7°C | 68°F20°C | 12 mph20 km/h from North | Mostly Clear | Partly Cloudy |
| May 15 | 47°F8°C | 69°F20°C | 10 mph16 km/h from Northeast | Partly Cloudy | Mostly Clear |
Yes
Low of 47°F9°C, High of 72°F22°CWind: 11 mph18 km/h
Precipitation: None